looking for 8-3/4 suregrip and front disc brake conversion

Some info on the parts for you, the complete original 8 3/4 out of my 69 340 swinger 4 speed car, and the upper contol arms,spindles and calipers out of 74 valiant, so big bolt patern of course.Not sure on gearing, have not checked it yet, but it's a sure grip. Make me an offer, but I must be clear on this, I did get another offer yesterday at Musclepalooza that's very tempting.
Cheers,
Mike