Carlos, if you look at RS-60 Mark's car on BAT, there are some chassis pictures. He used a regular front beam, but mounted the factory-style bar on TOP of the bottom trailing arm instead of under like the factory. Looks like it would clear the frame on a Vintage/Seduction frame.
Tom, yeah, the amount of stuff up there creeps up on you. I usually do a lot of looking and thinking about where EVERYTHING is going to fit and how it will work together. I spend way more time thinking and then the doing doesn't take that long.