1974 Mercury 460 powered for Mopar big block bell housing

I have a very rusty '74 Mercury Grand Marquis. 460, C6 transmission and a 9 inch rear-end.
The car hasn't been on the road since the '80's. Consider all parts to be cores. The car is a roller with keys. Complete including fender skirts.
Bill of sale
Willing to trade for a Mopar big block bell housing, or $500.

Located in Liberty County, Texas. Approximately one hour between Houston and Beaumont.
Pictures will hopefully come within the next few weeks.