Thanks Janis,
What I pay for in shipping, I figure I save in gas. I always appreciate when sellers start the bidding low and take a chance, I sorta feel bad for them since they got burnt and probably not happy about packing an SM for 99 cents and actual shipping cost ($14 usps pp). Crossing my fingers it arrives in good shape.
3 options on the brush cap:
1--Keep the tape on if it doesn't bother you
2--Carefully crazy glue the cap on being careful not to glue to motor by using pin or something small to apply
3--Assuming cap is plastic and you can get the proper sized replacement, remove the broken thread. Drill thru cap which is only solid for a 1/4" or so. Square hollow after a 1/4". Idea is to wedge a flat screwdriver in this hollow area and unscrew. If you remove the good cap you'll see this square hollow area.
Good Luck
Jon