Thank You. I have learned quite a bit on how these are put together. I can say personally that they are not that complicated. When things break, i dig into the manuals, take notes and take pictures. The trailer i designed myself and had it built specifically for my truck up north and what I'm grateful for is the CAT 525 doesn't even know it is back there even going through the mountains. One thing i have done without fail is take it out and run it every 3 weeks and that alone has saved me from maintenance problems. this coach is 13 Years Old and has 55K Miles on it so it has plenty years left on it to which I'm grateful.