Buick stage 2 v6 block

[BC_Buickguy]

looking for an Buick V6 off-center stage 2 block, 4.0 to 4.020 bore
related parts also appreciated like crank, rods, front cover.
Crank needs 3.590 stroke and rods to be 6.50

I have the whole top end and a couple of new cams plus rollers.