You have it! this body fits the AMT release much better than the lRevell one, but at the time of its release, the Revell kit was the only kit that was available easily. thus the advice of the Revell kit even though everyone knew it would fit the AMT kit also (just in case you wanted to put it onto the '25 Roadster release)
I have both here and looks like it will. Not sure why Jimmy's web site suggested the Revell kit unless that was the only available kit it would fit. Not much use to sell a resin body and suggest only "unobtanable" kits as a doner for parts!