A904 front planetary and washer question

We had a planetary gear set rebuilt kit back when, where you could replace the needle bearings, pins washers and shims for the gear side play, so I rebuilt a crapload of them back then.
I recently did some searches for one of those kits when the planet went on my 904.
When I realized it would cost about the same to fix my 904 as to replace it with a 42RH overdrive I did that instead.