Thanks so much for the input guys. Chip your pickup hose routing is real close to one of the ideas I was going to explore.

It was either something like that, or maybe snake it through the motor mount bracket on the K frame (I'll be using a motor plate, but would rather not chop the mounts off the k frame if I can help it).

Al thanks for the part number and pic, the old 829 lifters look like they are going to work, but yours are good alternatives. A little oil through the pushrods might be a smart addition before I start smoking pushrods and adjusters (rather than waiting until after).