i wouldnt clear them if they were mine, but thats just my opinion.
clear coat will dull, flake, bleh. polished though, grab up some nevr dull in the can from advance/autozone, keep them wheels clean and like, once every week up to once a month, pull out a little nevr dull (it comes as impregnated cotton batting), rub them down and whipe it off with a lint free / microfiber towel, looks like new. its like waxing them, wax on, wax off. i do it to the lips on my wheels, one of which has a spot of clear left on it that looks like ass.

nice job on the wheels either way though, they look good.