Sportmode, I'll do my best to give you an exact price on stuff. And yes I do work at a shop,Extreme Parts, in Racine WI. This setup is in the works one of our customers. Your estimates are pretty close. As far as Hondata compared to AEM go's, I like the both for differant reasons. Hondata has the launch hold and full throtle shifting ability which was very nice on my buddies Turbo'd Si. The AEM still has more features, and easy to operate. With the Hondata they brag about how the MAP sensor no longer throws a code, but you can get a Missing Link which does teh same thing for $70 if you get the AEM. IT also has a boost cut off jsut like the AEM. The AEM is more but in my opinion the Hondata has not reached the level that AEM is playing on. Hers some of the key features of the AEM:

-Automatic fule mapping
-onboard datalogging
-All sensors you need can be included
-Programmable inputs and outputs
-Boost control
-Idle control
-Base maps included to get you started

This is just my opinion, I like the AEM better, but thats just me.