JB Conversions sale on 241's -- yes or no?

http://www.jbconversions.com/products/nvg241or/

I just saw this after placing the order for their super short SYE, but they're offering 241's on sale for $1000 more than the cost of the SYE.

I'm trying to figure out whether to cancel the SYE order and take the plunge on the 241. Ever since the first couple of outings crawling rocks, I've wanted the 4:1 low range. The Tera 4:1 kit for the 231 is the same price as the full 241 from JB (sale pricing anyway).

Thoughts? George?

Well just for reference I've decided not to go this route. They are indeed JK Rock-Tracs, and after talking to the folks at JB Conversions I found out they require about $200 worth of adapting to work with a TJ (speed sensor, otherwise it bolts up fine). I still want to go this route eventually, but I'll stick with my 231 for now. I need more money