See my thread if you're willing to build your own hoist system ... It's been a pretty popular DIY build on here for a few years:

Hardtop hoist/storage write-up

 

You can search my posting. I did the power and posted pic's. Have had no issues and love the ease!!!!

 

$50 homemade hoist. All supplies from Tractor Supply Co. I have used it for the past 2 years and absolutely love it.

 

This is what I used to build my lift.

http://www.unistrut.us/index.php?WP=about_display&P=po_mf
http://www.lowes.com/pd_231952-273-T7550401_0__?productId=1064853&Ntt=rope+pulley&pl= 1&currentURL=%2Fpl__0__s%3FNtt%3Drope%2Bpulley
http://www.harborfreight.com/1000-lb-capacity-hand-winch-65688.html

 

I used ratchet straps and eyebolts on the cheap.