We built an ice house last year , it was 8by12 on a single axle winch style trailer , we had the tires come up into the house which we covered up and made into benches. we built a bunk on the back end with the top bed folds into the wall. the bottom one we use as a bench. we put a cabinet in and thats where we keep the batteries to run the lights, we put spotlights above each hole , for some style! carpeted it with a all purpose type .. insulated the walls with foam board style insulant. the roof is insulated with fiberglass, and a tin roof … heater comes out the side and is double vented for fresh air intake. we made the house a little to high , so it sucks driving down the road. it took longer then expected to build ,but we wanted to do it right.. we pretty much just went of shed plans and revised them a bit , all the inside work is custom, i dunno what you have in mind if your gonna have a house on a wheel, or a smaller one on skids… have fun with it thought , feels great to fish in something you built , means more i guess ,,,,,,,,,,,,,,TIm