waterinjection.info - Newbie needs guidence

Hello people, I am a total newbie to WI and am looking for advise on a proposed addition of an Eaton M90 blower to my straight 6 3.0 24v Carlton estate.

Basic engine spec:
3.0 inline 6 twin cam 24v
10:1 CR ratio (this will remain unchanged)
Bore/stroke 95x69.8mm
Standard management
Intended fuel: 97RON 'super unleaded'

Eaton Gen3 M90 blower taken from a GM3800 engine from the states (internal bypass) 10psi target pressure to start with.
Aquamist MF2 to drive one high flow injector (3D mapped using MAP sensor)
Aquamist WI setup I bought S/H with pump, boost switch and a few injectors (unknown size)
AEM wideband lamda and gauge

I plan to run no intercooler or chargecooler up front, the blower will be mounted Mad Max style poking out the bonnet and blows down into the inlet tract.

I have done a bit of reading on the site and many people seem to favor a straight 50/50 mix on the WI, but due to running no intercooling maybe I should sway more towards running say 30meth/70water for more cooling??

What AFR's should I be looking at on boost? Does the WI replace all chamber cooling or only some? Would 13:1afr with WI be suitable or do I need to go richer??

Would it be a good idea to run a smaller WI jet before the blower to increase efficiency and then a larger one after to cool the charge?

I do realise the system will depend heavily on WI to prevent the engine from melting/blowing up so I do intend to install several safeguards should the WI system fail or run low.

Any help and additional suggestions would be appreciated :)