Need help with gear box bearings

We’re trying to make a second drivetrain to practice piloting. We have everything for the gearbox, except for the bearings, which don’t come with the kit. I need to know the thickness and dimensions of the bearings so we can get them ourselves. Can anyone help please?

Fron the IFI website (transmission manual:

the bearings are:
FAFNIR #9103KDD BEARING QUANTITY 2
FAFNIR #39KDD BEARING QUANTITY 6

I also think you will need additional nylon washers:
MSC #67353680 5/16" I.D. NYLON WASHER QUANTITY(8)
and setscrews.