As far as removing the front cap it is fairly easy to do as Mike said but you are going to need help. I have had the bottom of ours off and it would have been next to impossible for me to get everything lined back up and fastened down by myself.
I agree with Mike, seek the advise of a good body shop or RV dealer that knows how to do these repairs. I might even call Randy @ Crossroads and just see if he can offer any advise on repairs of this type.
17 Chevy 3500 DRW 4X4
16 Mobile Suites 36RSSB4
2 Mini Dachshunds