I would just go for a ECU remap\new ECU that would get rid of it...

Also another trick you might want to try while you are saving up for that is that if you turn the turn enough so that it turns off most of the electronic stuff on the car and hold it there for a couple of secs til you get past the limiter...just enough to turn off the electronics without engaging the starter...that works on most cars that have elec. limitiers...