Fuel System Setup

I have screw questions about my fuel set up. Wondering if I can get some advice.

Heres my drivetrane
dual quads on a 5.7 hemi
A833
3.91 gears 8 3/4

So I purchased a new tank, new sending unit
New filter, and all new 3/8 line, trying to figure out the correct plumbing.

1. I have been reading on the return line... Is this necessary ?

2. Is ok to have a filter before the electrical fuel pump? High flow one, even with sock filter on sending unit? Will this create too much restriction?

3. If the return line is not used, can I plug the regulator return line?

So here's the layout, any suggestions are appreciated.

3/8 sending unit, to small amount of rubber hose, to high flow fuel filter to small amount of hose to pump. From pump to steel 3/8 line to regulator with psi gauge to carbs.

Thanks in advance.

A few, not screw...