Nothing like you described that I know of.
If you really need a rack, but want a soft top you could go with something like this:
It allows you to put your soft top up and down, but you are talkin' up to a grand depending on which one you go with. You could also go with something like this:
But you lose any rear-view out the back window.
As far as soft tops go, you can get pretty good deals on OEM ones on e-bay. But before I did that, I'd take a good look at what you really want to do with your Jeep. If I had a hard top that I was switching out for the summer, I'd get something like a safari top:
That is what I have and I've run with it all year (without the windjammer or duster). If you install it with a pair of the soft top door surrounds, it will keep you dry through most rain storms.
Lots of things out there to consider... good luck.