Engine swap on Mustang

I'm looking for info on the possibilities of an engine swap on a Mustang. I want to replace the 5.0 engine with a 429CUI engine from a '68-'73 Thunderbird. Is it possible? Has it been done before? (Pretty sure it has..) Any major problems? What gearbox to use, Mustang's or Thunderbird's? Any sites about this subject?

Thanks a bunch peeps!

that sound cool
im putting a ls1 drive train in my 66