EFI fuel tank module for stock tanks

It won't fit easily, if at all.

There is not much more than 10" between the bottom of the tank and the trunk floor.
I know the 94-01 ram units will fit with some work and the Durango units will fit without any modifications. I haven’t seen anyone try the 03+ ones yet but they don’t stick up from the top of the tank as much as the older ones so that’s what I’ll be trying to use