I found sources for the mast bearing. A repro for 60 bucks!..........I think I'll re-use the old one. It doesn't appear to be bad anyway.
The bushings have the same I.D.(1 7/64") but the O.D. might be different (haven't gotten the cover bushing out yet), and the lengths are different also (7/8" and 1 3/8"). I will take the thrust bearings and bushings into a bearing shop and perhaps they can be matched without identifying numbers. Thanks atomarc for the Hyatt bearing number, it may be very helpful as a clue.
I will keep track of all the numbers for these parts and post them after the job is complete. Thanks again for all of your help!!!