Fuel System... lines, pump

[84GMC15tepside]

Getting my fuel system in place with a stainless fuel line kit from inline tube.. I got a kit from them with the main fuel line, return line, and vapor line. I am debating over whether to toss the return line and get a fuel pump that takes just the main fuel line or to include the return line on the truck and get a 2 port fuel pump... Is there an advantage in having a return fuel line?? I ask because I've been having trouble with fitment of these fuel lines on the frame and one less line would save some aggravation.

Also, is there a certain procedure/any tips for installing brake and fuel lines? Everything is run on the passenger side and it's pretty tight with 1 brake line and multiple fuel lines... pictures would help if anyone has some! (the truck has a single tank on the passenger side)