Plumbing for propane... Thoughs on quick connects...

For the camper build, I intend on the following propane appliances.
#1. Coleman 2 burner propane stove in the galley / kitchen.
#2. Camplux 5L water heater / shower attach to the side of the camper in use, removable for storage in transit.
#3. Mr. Heater Portable Buddy heater for keeping our toes from freezing off in the winter. Removable for summer use. No need for heat in Texas from say May through October.
My camper build will be similar to RJ Howells overland foamie build, assuming my wife stays onboard with the flatbed conversion. WIth the exception of where his water carriers are, I am planning on having a pass through for a 5K BTU Window unit AC. And I want the stove on the other side away from the propane tank And propane tank lower on the compartment, and propbalby a 20lb tank just so I can stay with exchanges if need be...
I have a Joolca Gasknect on the water heater as of today, and it looks like a good, albeing somewhat costly solution.
My thoughts are...
#1. Some what of splitting the tank output into 3 outputs.
#2. Propane hose for each apliance stowed behind an access door that will allow me to pull the hose to where the appliance will be.
#3. Quick connects to each appliance. This would mean I believe, that the Buddy Heater, and Coleman Stove would require a 3/8" Flare x 1" - 20 throwaway cylinder thread adapter. Now I could use the Gasknect, they appear to be good products, but I would need a 3/8" gas flare x 1" - 20 throwaway canister male thread fitting such as https://amzn.to/3xKHXSb. The combined cost of the fittings at current pricing would put the cost of adapters to get quick connects to $39.99 for each appliance, plus the cost of hoses to get there... Not a huge problem, just something to note for budgetary reasons...
This leads my thought process over to wondering if there is such a thing as a quick connect that seals like the Gasknect does for 1" -20 connections? I already have plenty of long enough hoses for them... Anyway, the idea would be to be able to disconnect and leak free stop the flow of gas at the QD when the appliance is not to be used. Again example being say heater not being used in summer, Rain so horrible stove gets taken inside and used with a 1lb bottle etc...
Just trying to design in some flexiblity to the system...
#1. Coleman 2 burner propane stove in the galley / kitchen.
#2. Camplux 5L water heater / shower attach to the side of the camper in use, removable for storage in transit.
#3. Mr. Heater Portable Buddy heater for keeping our toes from freezing off in the winter. Removable for summer use. No need for heat in Texas from say May through October.
My camper build will be similar to RJ Howells overland foamie build, assuming my wife stays onboard with the flatbed conversion. WIth the exception of where his water carriers are, I am planning on having a pass through for a 5K BTU Window unit AC. And I want the stove on the other side away from the propane tank And propane tank lower on the compartment, and propbalby a 20lb tank just so I can stay with exchanges if need be...
I have a Joolca Gasknect on the water heater as of today, and it looks like a good, albeing somewhat costly solution.
My thoughts are...
#1. Some what of splitting the tank output into 3 outputs.
#2. Propane hose for each apliance stowed behind an access door that will allow me to pull the hose to where the appliance will be.
#3. Quick connects to each appliance. This would mean I believe, that the Buddy Heater, and Coleman Stove would require a 3/8" Flare x 1" - 20 throwaway cylinder thread adapter. Now I could use the Gasknect, they appear to be good products, but I would need a 3/8" gas flare x 1" - 20 throwaway canister male thread fitting such as https://amzn.to/3xKHXSb. The combined cost of the fittings at current pricing would put the cost of adapters to get quick connects to $39.99 for each appliance, plus the cost of hoses to get there... Not a huge problem, just something to note for budgetary reasons...
This leads my thought process over to wondering if there is such a thing as a quick connect that seals like the Gasknect does for 1" -20 connections? I already have plenty of long enough hoses for them... Anyway, the idea would be to be able to disconnect and leak free stop the flow of gas at the QD when the appliance is not to be used. Again example being say heater not being used in summer, Rain so horrible stove gets taken inside and used with a 1lb bottle etc...
Just trying to design in some flexiblity to the system...