Coogs,
The Edwin Eldridge Wild West Auction (linked to on the Ruger and Other Firearm Collecting section on here) has a 7-1/2" Max, SN 600-10284 and a 10", SN 600-08855 for your list.
Tim
Coogs,
For your records if you don't already have them. A local auction has two .357 Maximums listed; 10 1/2" barrel S/N 600-01308 and 7 1/2" barrel S/N 600-02307. Both appear to be 98% +/- with fair to good cardboard boxes, no shippers.