You are likely going to need a better tune than that. Each and every modification gets farther away from a "canned tune"'s baseline. What I mean is, you told them what your parts were and they modified the tune based on an approximation. They probably also assume that there's no leaks or codes.
You should try finding a dyno-tuner in your area and see what they charge.
The alternative of course, is to get even more cool stuff and tune it yourself (after much trial and error).
Most of these guys will probably talk you into the DIY method. If you plan to continue to modify then it probably is the best way to go.
I wouldn't consider either method to be "cheap".