I think your solution, using a small electric pump would work well. Also, you are good to keep the delivery pressure around 4#! Depending on the pump, a simple solution is to add a cup of ATF to a tank of fuel. F**d is advocating this as normal for the older IHC diesels because modern fuels don't have the lubricant needed for the metering rod in the pump... I have an older F-250 diesel, and it really suffers the moment I forget to add that cup!