I just painted Ford EP (Vermillion) in Chromabase (not cheap), however the same shop I bought that in had the Nasson brand in the same color for half the price, which was around 55/qt. That's pretty good for red!
be careful with omni paint, its cheap for a reason, when you could use 3 to 4 coats of ppg deltron to get the best coverage, it will take you 8-10 coats of omni, so you will use a lot more base