Recommendations of machine shop..

Kilpatrick did a good job rebuilding the 727 in my 73 Cuda and the price was reasonable. I've heard many more good reports on him than bad. Just make sure that all your expectations are clear and agreed upon, as you should with any shop. They also sponsor a Mopar oriented swap meet twice a year and I think the shop manager runs the local Mopar club.

Here is a link to the thread I started a couple years back that has some other suggestions in the SE WI and Northern Illinois area. Southern Michigan isn't that far away and has some good shops too.
SE Wisconsin Engine Builder?