Still gathering materials for this, but it's coming along. I just today ordered a Reef Factory x3 dosing pump.
I did a test with various Reef Nutrition liquid products, mixing them together and seeing if they stayed in suspension in a refrigerator (15mL conical tube). Pac pods + Arcti pods + Oyster feast + Roti feast + Phyto feast. The primary concern was phyto feast and oyster feast falling out of suspension since it is less viscous, but after mixing it, it all stayed in suspension for a full week with no falling into any density gradients.
Thus, I am now going with 1 dosing pump for Reef Nutrition and 1 dosing pump for RODI to flush. The third dosing pump will be for AFR.
Will update as I go along, but this is a bit of a slow process since it is an office tank and I'm not getting much peace in the office lately :~)