It depends how far you want to go on the rebuild and how the synchros measure up. There are only 3 roller bearings in the box, a needle cage between the mainshaft and the input, needle cage under the 1,2,3 & 5 dog gears and the 2 needle cage in the sandwich plate and front case. Those 2 are unusual and harder to get but still available. All the bearings set me back last time around the $275 mark and synchros are available new for around $105 each and are the same for all gears. A full days labour. Properly done you should have a bill for $750 plus synchros. Providing of course that the hardening isnt off the mainshaft or countershaft needle roller faces which is common.