Does this tune include dyno time? or is it just a street tune? This is where i got my street tune. Just to give you an idea of cost.
http://www.fasterproms.net/services.html
I guess it is all in what the tuner is providing you.
I watched over Jeremey's sholder as he worked through the different sections of the Transmission and engine and new it was not a place a novice should be playing around in. Getting a custom tune by someone who knows what they are doing is only way to go on these cars IMO.