looks fantastic mate, yellow is a great colour on the nsx, look at nobby's na1. bright colours look good on na1 and na2 cars.
i have used krust to treat surface rust so interesting o know if it's similar stuff. the other stuff i used was the green gel that you
brush on then leave a few hours, work in and reapply then after a few hours wash off and turns the brown rust to a nice silver metal.