86 Winshield Wiper Motor Rebuild

[86-C10-V6]

Just wondering if anyone has tried to rebuild their wiper motor.
Mine has been dragging really bad for several years, even after I greased all the pivot points.

I took mine apart yesterday and cleaned up the armature windings and the brushes. Greased the worm drive and the rear bearing seams to move easily and I think it will perform well if I can get it back together.

My problem is trying to reassemble the motor.
I have rebuilt several alternators, and it was easy to re-assemble because you could hold the brushes in place with paper clips inserted through the rear of the altenator while assembling, but the wiper motor has no such access.

I tried to assemble the motor armature to the brush assembly first, but when I try to insert the armature into the housing, the permanent magnets snatch the armature loose from the brush assembly.

Anyone done this?
What's the trick to re-assemble?

Thanks for any help