This is a BYOI party. If you want an interior, you're going to have to furnish it yourself in the most complete sense possible. Any vision you have can be realized; you even have creative control over the transmission tunnel and pedal assembly. Interior in general goes dead last or never in most of these builds, however, I'd strongly recommend throwing some plywood over that spinning U-joint, lest you get your motoring scarf entangled.
Matt, a self-proclaimed bottom-feeder of the classic car market, spends half of his time buying cars, half of his time retrieving them, and the remaining third on keeping them on the road.