It is right what eddie is writing.
The bearing 4206 is easy to get.
I think about using a 4206 also in a H3 engine, the engine had 2 of 30x62x10 on drive side, but I think it is better to use a double row bearing.
On timing side was a 25x60x12 (98305) bearing fitted, has the E29 also the same size?
Michael