Update on some progress for you all:
I just finished replacing parts on the main shaft of the transmission. It was actually fairly simple.
Parts replaced:
1st, 2nd, 3rd, 4th, 5th and Reverse Synchronizers with new carbon coated Synchrotech Synchronizers.
3-4 Synchro Sleeve
1-2 Synchro Sleeve
5-R Synchro Sleeve
Did some filing on the gears to remove mushroomed material. Scuffed up the gear cones to ensure that the new synchros will grab to the best of their ability.