Thanks for all the support. I looked into the Vegistroke and it is awesome!
I had hoped that I could add some V4 parts and slowly update my system but I have now realized that is not going to work. And I don't have the $5000+ right now to buy a whole new system.
I think the short term solution is a heat exchanger and fuel pump on the supply side of the filter. I'm just not sure if I want to add another pump or just move the additional pump that is on the engine side of the filters now. My feeling is that 3 fuel pumps is a bit excessive, but since my system has so many issues with it another fuel pump wouldn't hurt.
30 plate exchanger:
Flatplate heat exchanger « Catalog Products « Pacific Biofuel Supplies – Products « Pacific Biofuel Supplies
Raptor 150 Diesel/Vegetable oil fuel pump.
Frybrid Vegetable Oil Fuel Systems -- Catalog
Thoughts? How about the order? Hotfox - pump - exchanger - filter or hotfox-exchanger -pump- filter?