Yes, you should. I believe the earlier 1205 had the same or similar motor as the model G. Then they changed to the larger brushes with the Super J. You can try searching eBay. Or any good vac shop repair place would have them I would think.
You could also try an online retailer such as vac parts plus.
The bearings I don’t know about. I’m thinking the fan side bearing is a sleeve bearing.
