3 of the bearings are not standard. For sure. I found 1 on ebay for dirt cheap, but still trying to find the others. Flailmaster wants $150 a piece and it comes in a new housing. I dont know why they don't have them separately. Its listed as 2 different part numbers.
The gearbox bearings look like they could be standard so I'm going to pull them off and take them to Memphis Bearing supply. They appear to be 2 of each size but the diagrams show 4 different numbers.
I'm going to have at least 8-900 after replacing all bearings and knives.