Under $3k

I think a B body would be much easier than my E-body swap.

Start with a Mustang spec TKO600 and get a Lakewood bell. Turn the TKO bearing retainer to Mopar size and re-fit. Mock it up, mark bolt holes in lakewood and drill. Bolt it together with flange nuts inside and tack weld nuts.

Use factory clutch linkage with a Jeep 4.0L throwout bearing with is a dead ringer for the mopar one but fits the Tremec bearing tube perfectly.

The TKO's use a Chevy spline and since GM and Mopar Pressure plates have the same pattern I was simply able to buy an off the shelf 11" clutch kit from Summit for an GM product.

Since the B-body shifter position is located forward more than the E-body you would have to relocate the shifter to one of the other positions. It will be on center rather than offset to the drivers side.

Theres more homework to be done but that the jist of it.