I'd say sell the hard top; JK hard tops are selling for a premium.
Search Craigslist, the sellers are asking upwards of $2000.
While I doubt they are selling for that much, the market will bear what the actual value is and the price will surely depreciate over time. BUT I bet if you ask $1500 it would be quickly sold and put a pretty penny in your pocket.
I can not speak to the durability of the JK soft top, but the first top I had on my 94 YJ lasted about 16 years till I replaced it in 2006. At which point I bought a used top in "like new shape" from a (I think) former member here for $50 (I think it was Twisty's neighbor.)
edit for spelling