If you'll be channeling the body, I can think of no better inspiration than the 66 Fairlane built by Charlie Libby and now owned by Jimmy Mulvey up here in NY. This car has incredible presence and performance to match. The 315's up front are a bit tough to steer at low speeds, but the look is dramatic. The Fairlane has a custom full tube frame and a chanelled body--just as you have described. Charlie took dumpster diving to a whole new level by employing a number of Nextel Cup "take-off" parts including brakes, truck arms, etc.
Other details include flat silver powdercoated trim (all of it) and mildly enlarged/flared wheelwells. Interior switches and accessories are deleted or hidden. Charlie also had some one off billet emblems made up that say "Stroker" He put them on the dash, front fenders and decklid. TLT Racetek is presently converting the car to dry sump to solve some problems created by the external wet sump configuration. A custom tank will be mounted between the right front wheel and the bumper. The Stef's oil pan will help keep the crank centerline low.
The world needs one less "stock" Chevelle.
https://lateral-g.net/members/libby/