Re: removing bearing cups on Micargi
I don't think I'd hammer them in.
If they are the ones that I have with the 3 allen head bolts, you'll need to rotate them to get the holes to line up on the other side.
Depending on how tight they are I would use some sandpaper and clean out the bottom bracket till you can slide them in.
Removing the paint will probably be enough.
WD-40 wouldn't hurt either.
Don't bugger them up ..
Call Jim at sick bikes if you need to.. He is very helpful and will steer you through if need be.