Sounds like a perfect fit - a loaded Anniversary car with no power train and a modernized 428 with a TKX that's ready to go. As a wise man once said "I love it when a plan comes together."
If you're documenting it you should start a build thread here or on
http://www.transamcountry.com/community/ . I'd love to follow the progress. I'm sure others would too-especially with the TKX install.
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'09 Magnetic Gray Metallic G8 GT
'79 T/A
Solar Gold Metallic W72/WS6
'71 GT-37