I don't have a hardtop but, if I did, I'd look at one of these:
GGR220-RB
[ame="http://www.amazon.com/dp/B0015RQDGW"]Garage Gorilla GG220 220-Pound Capacity Residential Motorized Storage System - Garage Storage And Organization Systems - Amazon.com@@AMEPARAM@@http://ecx.images-amazon.com/images/I/51R-Gp578BL.@@AMEPARAM@@51R-Gp578BL[/ame]
You could either lift the hardtop directly or sit it on a small platform.
I use the Garage Gorilla for our recumbent tandem trike (
http://www.terratrike.com/images/tri...15/Tandem2.jpg) and love it. Great product.