I agree to that :-)
It is just that parmas currently runs without a intercooler and relies on pre compressor injection to keep temperature under control. If he upgrades to a intercooler, I'd also simplify. If it isn't sufficient, inject more.
To be exact, rely on pre-turbo for better compressor efficiency + air temp + post turbo to compensate. Intercooler is a no go for me!
I never suggested to do anything complicated. I was merely listing a selection of choices for different scenarios shall he change his set-up. Dual stage dual fluid is crazy for little merit.
AGREED
IT is strongly against the KISS principle without offering any significant benefits over similarly costing and proven alternatives. On a front ended car there is usually plenty of space to fit a big air to air intercooler. This will have way more benefit than a too fancy of a WI system. A simple one will do fine as you wrote.
Again no intercooler sorry 
Riceracing's Systeme is not complicated, a container, a solenoid or flow control device, a air assisted atomizing nozzle with external mixing and some tubes. It is about as simple as it gets and seems to work well for him and his customers. After all, pre compressor injection is what was used by the American WW2 piston engines with their very high pressure ratios.
This high pressure ratio also where it makes the most sense.
A diagram would be ideal... the tank can be situated into the engine bay ?
The pump systems are more flexible regarding nozzle location and lower pressure ratio cannot take as much advantage of pre compressor injection as the high pressure systems with their very high turbo exit temperatures and at times inefficient intercoolers.
A pump system with nozzles positioned to get stuff into the cylinders is the most suitable in most cases. For Parmas' set-up as is, no IC, pre compressor is the right choice IMHO.
I don't think of injecting everything pre-turbo since the compressor would need to deal with too much evaporation that could cause damage to the wheel.
For my mid engine charge cooled apöication, I'd still would like to give it a goo, but con't as boost is not high enough at all times on WOT (centrifugal SC) to properly drive a air assisted nozzle.
Parmas, any videos of your car? I always love the sound of angry FI engines.