360 Flywheel and torque converter

Okay, if it is a lockup trans, just use your 360 LU convertor and a standard Mopar flexplate. No need for the B&M plate.
One last thing... Possibly

Went to RA these are what they have. If they're that inexpensive I'll save myself a trip to the boneyard. Or any other place have stock type Flexplates?

1981 DODGE RAMCHARGER 5.9L 360cid V8 Flexplate | RockAuto