Hi Vikki! I took a look at the hardtop holder from adsitco, and it seems to be OK. I purchased mine from the dealer, which supports the top in the same upright position. However, it also supports from the rear windshield, not from the sides along the top itself. I strongly recommend that you purchase some type of holder. The tops can warp if stored incorrectly.......then you have a really expensive coffee table!
PS.....I store mine in our living room, on the rack.......the wife is REAL pleased with this!!!!