I've been looking to get a hard top for my Tj for a while now. Used or on Ebay you have to sign over your first born. As much as I tried my wife would'nt let me. But the Yj top seems to be more afordable. If you call Quadra tech they will tell you that it will not fit. They are right it will not fit, at first. But if you are not afraid of alittle work you can make the top fit real easy.
I kept looking at them on Ebay thinking that it would fit. So I decided to bid on one and if I won and it did infact not work. I would just relist it hoping to get what I paid for it.  
For a small investment of a couple hundred and a little trip to pick it up I had in my possecion a hardtop. I took of the old soft top. Lifted the hard top on the lift that was thrown in with the deal. Backed my Tj under it and lowered the top down. To mine and my sons suprise it looked good. Not perfect but good.
You see the front is what really doesnt match up. The rear matches up fine, the holes do not all match up. But a drill can fix that. As for the front a die grinder and cut off wheel is needed. It took about thirty minutes of trimming and down it went. looks real good too. I even used the hold down clamps from the soft top to secure it.  

Sounds cool that it worked out for you. got an pics to show where and what were grinded off?  

Thanks I didnt take any pics in progress. But I do have some pics I will get them posted.  

hey..heres some of schwartzenberger's pics of the cj top he stuck on his tj in november....actually heres the link instead! and one pic...

http://forums.jpmagazine.com/70/6438355/speak-up/hard-tops/index.html