Pull the rod caps one at a time and inspect the bearings and the condition of the crankshaft. If the crank is still round within about .001" or so and not scored you can probably swap bearings and button everything back up. Very slight scoring can be polished away with a strip of fine emery cloth and a shoeshine motion, followed by a GOOD cleanup to remove any abrasive residue. Be absolutely sure to measure the crank journals for out-of-round with a micrometer, not a dial caliper, to be sure it's within specification.
Drop the main bearing caps one at a time and inspect the bearings while you've got the pan off. Mains are a little more difficult to change than rod bearings, but not impossible. It's a bit more of a problem to measure main bearing diameter in the block, also.
Jerry
