I’ll give that ratchet shifter a big thumbs up! I love em. I put the Hurst Pro Matic 2 in my Superbee. It’s great. Your frame looks excellent! Keep those cables under sheet metal! I think the key to installing an aftermarket shifter is to put extra support under the mounting brackets to give it a nice, firm, level feel. Most guys just drill their tunnel and bolt it down. That base plate will work fantastic.