If that is for the install and the dyno tune then that is a very good price. You will pay more than that from some places just for a tune. Just make sure this shop is good at tuning and get a guarantee in writing that they will fix anything they break.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.