I'm not sure if you know Ron Flood...............North Branch , Mn. , but soon to be up Pine City way.
I believe he has a set of the B - RB to Hemi conversion heads , and Lord knows what else he has squirreled away , but he might be a good brain to pick for a project like this.
Cedar Machine.( 651 ) 674 - 8365
He is semi retired , but I think he would not be opposed to any project that was cool or interesting , and this sounds like both.