Yes, it sounds like a very decent combo if the kayfun clone is good. Personally, I am thinking about an aqua clone (no tools needed).
For batteries, you should be good as long as you don't push the unit too hard (though I am not sure what those batteries are rated at for drain). I probably wouldn't go below 1.2 ohm builds or so.
I think you got the right unit. The chip definitely seems like a good step up from those 33mhz chips. The only other device I'd look at is the seven-22, though that is a huge device and you can not get fasttech pricing on it.
Thanks for the reply. I appreciate it. I will post my thoughts when it arrives. My last FT took a VERY long time. I hope my ZMAX can hold on a little longer.