Nikkis 66 dart 270 daily driver.

God my garage is a frigging mess right now! I can't believe that I am rebuilding a motor on the floor!

So the new crank and rod bearings are on their way from rock auto ($116 after shipping), the gasket kit is on it's way from ebay ($34 after shipping), I will go to Delta cam in Tacoma and pick up a stock 71-80 regrind and lifters on Thursday for $49.50 (cam is 28.50 and lifters are $1.75 each), I have the block and head clean, all the carbon cleaned off the valves and I am just waiting for stuff to get here.
I am not pulling the pistons because there was good compression, no scratches in the cylinders and the motor didn't smoke. The only thing that I can think of right now is that I should polish the crank so what kind of polishing cloth should I use?