Has anyone made write up on a Diy on a alky/water injection?

The little info that I have read still has me confused, from using a washer reservoir and pump, to a all out setup. I have been thinking of trying to piece together a system for my GLH. So far I have a few pieces that i have to question. could you guys comment and possibly, better suggest how a kit comes together?

These are my plans so far,
stock GLH fuel pump that I plan to make a fuel cell for,
Vw cold start valve,
Hobbs pressure switch

run the pump in a loop with a restrictive orifice in the return

tia - dave