Ok...so it has definitely been a while, an update is in order. I ended up using 3/8" osb for the walls. God I hope that doesn't make Victoria too heavy. For a short time I was living in the bus, and it was great, but unfortunately, Michigan has very cold winters, and since all I had to work with was a 1500 watt electric heater/fireplace, it got very hard to stay warm and comfortable. I definitely need a new battery, and I'm hoping the largest one walmart sells for $75 will do. I believe it is over 900 CCA, not positive though. Since my battery is pretty well shot, I couldn't get Victoria to start in the cold, and therefore couldn't run the heat exchangers (which I built around). I still need to somehow insulate the ceiling, I was thinking of using carpet, for aesthetics and function. Once winter is over I can really get jamming on all the small projects that make up one big bus.
I haven't been able to get too much more done on it, because it is unbearably cold
at the moment, however, I am so excited that after months of searching, today I purchased the perfect sized 2-door refrigerator/freezer for $30 on craigslist. I was thinking I would need to buy a new one for $300+. This one is great, residential, I think around 11 cu. ft., all electric, plenty of room inside, I hope that using it in the bus won't cause it any problems, as I am very stoked about it
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If I can manage to bear the cold or get a good warm day, I will try to take some pictures, as Victoria looks a lot different inside from last time I posted pics. Thanks for all the advice!