The other cheap way to get information is to go through Corvette equipment suppliers websites. Naturally, the parts names identify the year of usage. Also, they often have parts breakdown sheets and instructions. I found it in either Eckler's or M/A. Don't remember which, but it had a description of the system, its parts and locations. Probably Eckler's.
I can't remember the name of the Corvette salvage place, but it can undoubtedly be found by searching. It's probably also in a Corvette Trader mag. Good luck.
You can get new pumps from both Eckler's and Midamerica for less than $100. I think Midamerica currently has the best price. My catalog isn't handy, but I believe it's around $80. They have the pump listed two different places in their catalog with two different prices. My dealer quoted $163 earlier this year and I bought mine from Eckler's at the time. They work fine.
Today I was told they can't fix the pump (it was really burnt out) so now I must shop Eclers for $205 the local dealer says $212, hell I take a used one. If anyone knows of a discounter please let me know.
Sorry to hear that. I haven't dealt with any salvage shops, but if you do a search on the web with 'used Corvette parts' - 'corvette salvage parts' or anything with that general idea, you'll get a few. A number of them have toll-free phone lines. Definitely worth a try.