For VFM I would look at the V4 ecu, I am lucky that my fave one/people moved around 120 miles from where they were to where I live, seriously in my town, I would recommend getting all your bits that you want done, then doing it all at once.
As cost is a issue as with the rest of us I'm sure, think about where you want to end up, and work towards that the cheapest way, for example when you start talking about adding coilpack, closed loop etc then a msd mapping charge on top it doesn't imo look so good money wise, and personally if it wasn't done on a rolling road I wouldn't have it mapped, just be content with a chip that will not in a million years exploit the full potential of your engine, if it could/did then "live" mapping wouldn't exist.
I'd just do some sums first and think long term, I've been in many cars mapped by different people, my fave was GGR for a simple install the chip/parts type tune.
tabetha