I had a BTR Stage 2 cam done, LS3 conversion, upgraded high flow oil pump and trans cooler, everything was upgraded and I love it! Not to radical, drivability is great and now putting down 450rwhp and 423rwtq.
My cost was pretty close that, money well spent and pretty much every place I have seen in the Midwest is in that price range which includes parts, labor and tuning. Best money I've spent on my car and it has brought a new leash on enjoying my car.