OK. You mention 'linkages', if you're retaining the same style transmission, the main thing that is different is the kickdown and throttle cable bracket. On my truck, the kickdown from the car was a one piece rod that wouldn't clear the firewall. The 400 truck had a two piece (three piece?) kick down. Not sure how well an aftermarket kickdown cable would work instead.
Yes I'm sorry I should be referring to it as "kickdown". I don't hear great things about Bouchillan cable. Maybe I can find a used one out there to buy.
