Well I'm thinking about doing my first wall, but I've never done anything like this so I had a few questions. It'll be in a 2009 cadillac SRX, which is a small to medium sized SUV.

If the wall is built inside the car, how do you put the attach the side panels on the box? I could only screw down the sides where I have the side doors opening up. Same question with doing the top panel as the roof would get in the way? Is it better to build outside and slide it in from the back?

Also has anyone ever worked in a shop that does walls? How much would I expect to spend if I let a shop handle it if I provided materials?

Lastly, anyone in the Illinois area feel like helping out on a wall this next summer lol. Paid help of course.