Are you planning on doing any serious offroading?
a 2" lift and 31-32" tires will give it a more aggressive than stock stance without being too crazy... 33+ will be a lot noisier, burn more gas, be a pain in the ass in the rain, snow, highway driving, etc... Depends on how much time you're going to spend off the pavement and exactly what terrain (rock, mud, etc).
The bikini top looks ridiculous and eliminates your back seats, I wouldn't put one on my Jeep if you paid me.
I think an aftermarket cage is overkill. You're not going to roll your Jeep unless you're very stupid (I put mine up on two wheels for about 4 seconds while doing a 70km/hr powerslide on a gravel road) or very unlucky... Even in that event, the provided bar and windshield will be a lot more than most convertible owners have for protection.
SureFire, got any pics? Your rig sounds like a monster
