Where to mount a propane tank?

Where is the best or handiest place to mount a propane tank on a teardrop?
I'm going to build a 5 x 10 Benroy inspired teardrop. It will have a Camp Chef Outdoor Camp Oven on a slide out drawer in the galley. The two most likely places to mount a propane bottle seem to be on the tongue or on the exterior beside the galley.
A big goal is to keep the weight of my teardrop under 1200lbs. I want to eliminate unnecessary weight in the components of my teardrop. My tow vehicle is a 2015 Subaru Forester with a 1500 lbs. weight limit for a towing trailer with brakes.
1) Tongue mount: plenty of room on tongue, may effect tongue balance, need a bracket to fit propane tank, does not obstruct vision while driving, longer more complicated run for gas piping, longer pipes add more weight. noseoil's tongue mounted propane tank setup is inspiring.
2) Exterior of galley: enough room on exterior of galley, need a bracket to fit propane tank, may obstruct vision while driving, short less complicated run for gas piping, gas piping weighs less.
I'm going to build a 5 x 10 Benroy inspired teardrop. It will have a Camp Chef Outdoor Camp Oven on a slide out drawer in the galley. The two most likely places to mount a propane bottle seem to be on the tongue or on the exterior beside the galley.
A big goal is to keep the weight of my teardrop under 1200lbs. I want to eliminate unnecessary weight in the components of my teardrop. My tow vehicle is a 2015 Subaru Forester with a 1500 lbs. weight limit for a towing trailer with brakes.
1) Tongue mount: plenty of room on tongue, may effect tongue balance, need a bracket to fit propane tank, does not obstruct vision while driving, longer more complicated run for gas piping, longer pipes add more weight. noseoil's tongue mounted propane tank setup is inspiring.
2) Exterior of galley: enough room on exterior of galley, need a bracket to fit propane tank, may obstruct vision while driving, short less complicated run for gas piping, gas piping weighs less.