Design & amenities I'd like to have

I've narrowed down my choices in the design of my tiny house to 4 sets of plans; 
Tumbleweed Tiny House's Epu which is 89 sq. ft.,
Tiny House Design's 8' x 12' which is just the framing & I'll design the inside, Tiny Home Builders' Tiny Living  & Humble Homes' JS Bell Porch designs.  Just click on the design names for a link to take you to the web page they're on.


I definitely want to use solar power & propane for my electricity, heating & cooking options; a wet bath similar to the ones in boats to save space; a composting toilet & greywater filtering system for sewage;  an on demand water heater; a real propane rv stove/oven; a roof mounted rv air conditioner; a ceiling fan & exhaust fan.  I want to use recycled denim for insulation & have a metal roof.


I'd like to use as many recycled & re-purposed materials & parts as possible.  I got several ideas from other tiny house builders.  One is buying an old rv that doesn't run but still has working appliances & electrical parts & taking them out to install into the tiny house because they run on 2 way or 3 way power.  2 way is 12 volt & 110 volt & 3 way is 12 volt, 110 volt & propane (for the refrigerator).  Solar power runs on deep cycle 12 volt batteries so that's less to run through an inverter that would convert 12 volt to standard 110.


I have more ideas coming so come on back & see my progress!