Michael,
Someone made the same comment in another thread recently, here's how I responded:
I've done a design for a JKU Safari Cab, it's got all the same features as the TJ/LJ Safari Cab - it's modular, the hard sides can be swapped for roll-up side curtains; it can support roof-top tents and other heavy loads on top; it's got a raised roof for more headroom (and it's also got small "Alpine windows" along the upper sides); it also has a swinging rear barn door. The lines are slightly more angular than the current Safari Cab to better integrate with the more angular lines of the JK. I haven't posted any concept drawings of it as if yet. Not sure when/if I'll build one, I don't have a JKU here to work with.
At the moment I don't have any plans to add a JKU to my stable, so unless a company approaches me and asks me to build them a JKU Safari Cab, and loans me a JKU to do the work with, I don't know when/if I'll build one.
Jeff