Honestly, after running SUs when I first bought the car March 2006 and not knowing a DAMN thing about F/I, I was going to stick with a simple carburetored setup and build up a stroker. After pricing everything out, a turbo swap was looking better and better for my power goals.
I researched for the better part of 8 weeks. I looked up everything I could find on engines, F/I, the Bosch L-tronic, etc., and decided to go with the turbo setup. I was then struggling with modifying the stock ECU or going with Megasquirt. I started reading everything I could find about MS on this site, starting with the VERY last page on the MS forum and working my way to the front. I clicked on damn near EVERY "Help!" thread I found.
In the end I decided to go with a professionally manufactured system (Wolf V500). I made the right choice.
F/I is not hard AT ALL. Hell, an aftermarket EMS is easier than carbs in my opinion. I have 3 sensors I worry about.....that's it: coolant temperature, MAP, and intake air temperature. Wolf only uses the TPS for throttle enrichment or decel leaning. You can control your fuel application with much more accuracy than carbs can dream of.
F/I is quite easy to understand too. In the end it is really no different than carbs: air, fuel, spark. The air and spark sides are identical, the only difference is the fuel and that is easy too.
Don't let the bugaboos of modern EFI cars keep you from sticking with EFI on your build.