OBD1 just curious. Have you thought about Feals? Not to steer you from your goal/dream.
For slightly over $1700 shipped to the east-coast. And they have race-valving, NB high hats and 12/8K preloaded springs. I love mine.
Greasemonkey2000 (Chad) is also running this set-up. Might want to get his thoughts, also.
I know how hard $$$ is to come by.