You sure you looked in the right places or very long?
Front in a parts fische calls for 6302UU (2 bearings)for the front, but you can and should get them sealed on both sides.
The rear takes two 6304Z bearings and one 6305Z bearings (get the double sealed bearings for these also.
All balls bearings sells sets for these models fairly cheap and they should work fine in your case.