Adding a chip? I bet you can get a ROW flash that eliminates the immobilzer for around that price.
From Pedro's website 
The DME
	Quote:
	
	
		| For special applications, such as race cars, we can now eliminate the immobilizer function, allowing the driver to not need the key to start the car. | 
	
 
I'm sure Brad can point you to a resource as well. It's all in the software, adding a sim is not a good solution.