You have 2 options. Take a socket that is the diameter of the shaft and pound the shafts out. you need to alternat each shaft every three hits or so. It will take a while.

When you go to reassemble the trans build all the shafts and forks in the belhousing and place the gearbox case of the shafts. YOu will need to carefully take a larger soket and pound the bearing onto the shaft. Becareful the inner race of the bearing cracks real easy.

The second way is to buy a 120.00 press that you will use for life.

now you wouldbe able to disassemble the output shaft to access 1st and second gear without a press.

The rebuild kit comes with all brass synchro's (i have had issues with them not working as well as factory) bearings, and seals. You will need to reuse all clips bolts ect.

Terry