We got peeved with all the welding nightmares of oversized bushings and just made some pins up ourselves that have saved us a ton of time. Also, Rory428 is right. Some people get a little unhappy about welded up bell housings. So, we made our own. We put a hex on them so they were nice and easy to adjust. Even made them out of 17-4 PH. Yes, we are a little crazy
I'll post pics tomorrow.
As for getting the pins in the block out, we usually get a pair of vise grips on them and then hook onto the vise grips with a slide hammer. If that doesn't work, we weld a nut on to the pin and screw a bolt into the welded on nut. We then slide hammer the mess out. I have never broken an ear--or heard of anyone doing it either. But, that of course doesn't mean it hasn't happened!
Oh, BTW, 0.005 is within spec so frankly, I wouldn't worry about it. Count yourself lucky.
David