Go for it. The only way you're going to get the experience is to try it yourself. Interiors are not difficult to redo on your own and there is almost nothing you can do wrong that can't be redone.
Reskinning seats is easier than it looks, but if you don't have the right tools you might conider pulling them out and having a professional do them. You can do all of the rust stripping and painting prior to handing them over.
Take your time. Take some pictures. Mark ziploc bags with the correct hardware. Piece of cake.
