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.....

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I’ll have to crawl under the car and look to be sure, but I believe I turned my reverse lever around and upside down and it now goes over the crossmember. I think I remember trimming the floor pan just a wee bit to make it fit this way but now it’s tucked up out of the way.