I'm pretty sure removing the systems concerning ESP, airbag and seatbelt monitoring would be defectable modifications.
If you could duplicate everything in function using approved and tested components for safety systems then I guess they would give the modifications approval.
So I guess the best bet is to get your Engine CPU to talk to the main CPU or have the main CPU ignore it somehow.
I'm no expert in these fangled car CPU things myself, I haven't seen an drawings on exactly how it all works, but I do deal with interfacing machinery CPU's (PLC's) to each other a fair bit and it can be a headache.

Yeah most conversions are a lot of work, and from what I've seen any one with basic skills can use a kit to drop an engine in, to make it a good conversion involves matching the right motor to the application and all the little things like cooling system, throttle linkages and wiring that make the difference between a good conversion and a bad one.

G'day Shane here's a link to one being done in Dubai he's using an LSx and seems to have most of it sorted.

http://www.jk-forum.com/showthread.php?t=102108

i asked burnsville off road about a conversion kit( like the hemi conversion) but they have nothing, and didnt seem intrested. a four door with a 350 chev would be a great 4x4.

Gee mate, with the various Mopar mills the Yanks have available to em, why would they dick around with a chebby???? Not as good as a HEMI.............**)

cause the chev is a f...load cheaper to buy than a hemi boat anchor and also chev is a crap load easier to get power upgrades cause of its huge aftermarket support .

Maybe in Aus because of all the dunnydores, but in the greater scheme of things (globally) the Mopar isn't anymore expensive than GM or Formoco.......Check out this boat anchor,http://www.teambrayracing.com/newsit...carsvictor.php and in a Chev to boot. You'd reckon he'd run a chev, in his chev eh???? Obviously the man wants to win!!!Might have to whip down to Haynes hunter and grab myself one of those suckers before someone launches it......**) **) **)

well that is the most stupid comparison i have seen a big block drag car motor to a small block road going engine . jk guys use hemis cause of the computer is easier to match up so the rest of there electric junk works .
all other jeeps usually go for chev engines as it is by far a cheaper and easier conversion to do even the guys on pirate say the chev is a cheaper option that is better for offroad use