My wallet says go forward from here, but, my gutt says, take off the pistons and crank as well, replace the bearings, and go forward fresh. Its already apart, so nows the time to do it right.
I have tossed around the idea also. Do you have a running engine in the car already? If so I would wait and do it all new. to get it all put together, and then the swap it in the car itself is no simple task, hang all the accessories plumb all the hoses.....see what I am getting at. To run it and findout in 2000 miles it has to come out would be a hard pill to swallow. My .02