Personally I'm doing all the interior myself. You can buy really great foam (memory foam if you want) at a fraction of the cost. It's going to be a lot of work, but I also have a local upholstery old timer willing to show me the ropes. He's helped source materials as well. I'm going to go with a high end marine grade fabric. I was hoping leather originally, but damn it's expensive for quality. All in I'll probably be at $500 and be totally custom. This is going to include the dash, seat pans and cushions with covers. Hopefully it turns out as good as I'm hoping. Will be starting on it this weekend as long as nothing gets in the way.