Keith,
Great project. I too am starting on the K&O car. Hopefully I can figure out how to post pictures. On the anodizing, I've used Tamiya Clear Red over a silver base coat after I stripped the chrome off. Works great. On the roll cage, I glue the roll cage together and then sand it smooth. When I put in the seat/back support piece, I leave one of the ends that glues to the chassis free and spread the rails slightly to fit the seat in. Then glue the support to the bottom rail. Works good for me so far.
Good Luck
Tim