I would take the rods and crank to a reputable machine shop ask them to magnaflux and check for straightness. The heads are O's and sure look like 202's to me. I would always put new valve springs on unless I know for a fact that they are new and up to the spec. At that time you can check the valve guides to make sure you don't have any slop in them . It's going to be a process so don't get in any Rush ask a lot of questions and read some good books. Building a small block Mopar is a good one it's older but still has a lot of good info in it. Especially for a hot stock rebuild.
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