Thanks for the info juiceman. I see how bad of shape the pony is on one machine but I may just convert to electric to reduce frustration and more money down the road.
You can drill it freehand - you don't need a jig. There's tolerance in the dimensions. I drilled my 5U bell housing freehand and it's fine. Just mark out the centers and check them twice and you'll be golden. Drilling the big hole with a hole saw goes surprisingly fast, maybe a minute or two