Yep...what I'd do too. Hold off and see in person your self. If you want larger (which will be getting to that point of too large - just my opinion - and weight will also get up there)..if you want larger, go for it after you see it. But, I think 20" polished would be a nice set up. IF you need to close the gap, a one to two inch drop would be cool. You could always go larger in the wheel area later on and sell your polished to someone who's looking (there will always be someone wanting the upgrade in that area who didn't get it right off the bat too!).
OH! ...almost forgot. The SS comes w/ a different ride height than the LT. Which one were you looking at?