Thanks for the welcomes! I'm twenty and learning how to work on new stuff is fun. I hope to live in my bus when its finished and being able to live wherever I want to live when I want to live there! I'm still stuck on the floor right now though.. I don't have a lot of money right now to work on the bus so I've been trying to find all the free and cheap supplies I can off craigslist and freecycle. I've had trouble finding sheet metal or metal signs, free or at a price I can afford so closing up the holes is slowing me down. I do have some aluminum road signs and was wondering if anyone has every cut aluminum to fit around the rusted holes, then screw into the floor with sheet metal screws and then caulk around it inside and under the bus. Would this be something that will work long term or more of a short term fix? I want to do it right but also something that I am capable of doing. Here are some new pics of the inside. I've painted the floor with Rustoleum Rust paint and also used Hammer Tite, a product similar to POR15. Another thing I was curious about was if anyone had dealt with the floors being different levels and what is the best thing to do to get everything leveled out and the holes covered well. Thanks for reading all of this and thanks for any help.
Here is the back corner.. pretty rusted out on the floor and the wall.
Another rusted out part..
Inside showing the paint and work area..
The signs I have to work with right now..