Looks great man, very nice work! You've probably got something already up your sleeve, but definitely install weld-in frame connectors. I'm curious what you do for exhaust manifolds/headers. I couldn't afford custom made headers and used SRT8 Jeep manifolds.
Earlier this year, after 3.5 years of start/stop work, I got my 66 Barracuda with a 6.1L based 426ci gen3 hemi up and running. I love the early A hemiswaps!