Iirc the gizzmo ibc can control the boost and fuel cut, but is a little more difficult to set up.
Thor fcd's are often regarded as one of the best, but getting thin on the ground, I used one from HKS.
If you cen change the spark plugs without needing mollycoddling all the way through, and can solder a little there's nothing really stopping you bpuing the car by yourself.
I'm sure there is a sticky somewhere in technical on how to do it, and most manuals are online for boost controllers.
Remember to fit a 1st decat too, and for the afr gauge you'll need to have a boss welded into the second decat.