Sean is one super guy, my wife has been talking to him for about a week now and he is so helpful and understanding its unreal. First off you want probably find any deals on the Vec II, as he only makes a few at a time , and unlike someone like hypertech that makes thousands and keeps there cost down, naturally the fewer you make the higher the cost.
As far as dyno and programming, depending on what you have done when you order your Vec II just tell Sean what you have done and he can program it for that , no charge. Or you can order it and he can email you a program and you can download it yourself. It will probably be 95% perfect, but if you want exact programming, then yes you will have to find someone that understands the vec and dyno and program it for you, or you can also have it dynoed, email the dyno sheet to Sean and he can write a program for it or email it to you, and download it yourself, or even dyno it before you order and it will come programed if you send the dyno to Sean and ask him to pre program.
I forget who had it done, sorry still alseep just done the 800+ overnight, but they installed the Vec on a QC with CAI and no cats and got about 450hp to the ashpalt. Just remember your largest gains will be on bottom and mid range where the trucks are so rich. Hope this helps.