Let's see some R&P pics!? My '51 Cambridge has Fatman dropped spindles and 2" lowering blocks in back... otherwise stock suspension & steering... and it drives quite well. But I'm intrigued with the idea of the rack set up. No shame in running a generic engine in your car, make it as easy to use as you can and you'll love it. Like you say, be yourself and enjoy your car!
Does the car have a different front suspension, that may be the reason the firewall was moved back. HRP