The only fly in the ointment is the turn, I think I would aid the angle by rounding it to fit a 351C intake but maybe round the entry to match the turn in the heads. The front 4 angle forward and the back four angle baclk. It would take a little modeling and testing, but a bias turn in the intake like your sheelt metal intake was a work of art in that it ket everything a straight shot. The entries would have to turn slighly around for the port angles to match. I would think the turn would start immediately at the intake attachment to allow a smooth transition to th already short port and short side.
JMO. But I have been screaming for this for years, you could service roller lifters, use a mirror to watch pushrod sweep and contact areas. I also like the fact that it is a dry top, you can have a 1X4 for the street and a 2X4 for the strip, or have an EFI top with injectors, rails, throttle body and a plug in for a Fast setup. The possibilities are 20th to 22nd century !
Your handmade sheet metal intake for the BT HRs is a work of art!