Thanks guys for your help & to save $$ from doing the in tank pump conversion, I'll try what the Mallory tech advised &
because he said the pump will work if I reposition it between the tank & filter & I shouldn't have to reposition the tank
inlet & outlets to the bottom of the tank. SO, we'll soon see if it works & hope my friend can get to it soon.
Originally, I wanted to put the tank where the battery is now & then I could've put the pump behind it, but "saving money" to work with the tank I had was the wrong choice for sure! If I wasn't going to sell the D100, I'd get a custom fuel cell that fits in the middle & it'd look much better from the rear.