Mr Gasket Verti Gate A-body shift rods and Mount.
I think you'll need the plate
and a couple standoffs for between the plate and shifter mechanism, along with the shifter levers.
My 1-2, 3-4 are basically two straights with 3/8"-24 threads (I believe) and pivots at the shifter. The reverse runs under the trans crossmember. I'm not keen on it but that's the way it came and it works.
Some pictures I dug up.....