The issues with the Z are going to be the transponder starting (easy with a programmable module) and the transponder locks. The locks are probably the biggest issue.
In thinking about this issue before purchasing my Z I initially thought about using the pre-start output to pulse the factory disarm, then use a post-start pulse to lock the car after it was started.
Hopefully that XK09 module handles that issue for you. Let me know if it does. Then I can slap this bad boy in in no time.
An idea I had also (since I have a 6MT)...... Using a diode of course, tie the parking brake into a zone so the car won't arm unless it's up. Granted, it won't tell you if it's up
all the way, but I find myself worrying from time to time if I've set the brake or not.
Also, thank goodness for neutral safety switches and gear indicators so I don't have to worry about a make-shift grounding system using springs to know if the car is in gear or not