Do I fit in the "basic galley" club? Dunno for sure but I swear by mine.
I purchased my first teardrop in 2004, a 4x 10 Hunter Silver Shadow in North Idaho. Here's the galley stripped down for sale:

Behind the left bottom door is the battery compartment. in the middle, I kept a slide in/slide out 7 gallon Reliance water jug with a spigot. On the right side a 48 quart cooler fit just fine.
I built this teardrop last summer, a 5 x10. Look familiar?



In a sense, it's built around the 7 gallon jug, the 48 qt cooler, and the stove. It's what I call a
working galley. As you can see, the water jug slides out so you've got access to the spigot at any time. The stove is a Primus with a hose that feeds from the bottom into the 1 pound propane bottle (nested in the droor below it) that's always hooked up –pull it out and pop the piezo. There are nest slots for two additional propane bottles behind the water jug. There's a dry-goods storage area behind the cooler for paper plates and garbage bags.
I built this 4x8 for my sis this spring. The battery nests in the bottom left, a 4 gallon Reliance jug fits in the middle and a 48 quart cooler on the right. Look familiar?

Anywho.... I'm in the process of building another 5 x 10 and I'll do the same galley '
cause it's simple and it's a joy to cook in.
Tony