The only downside to this is that you will have very high pressure fuel running the entire length of the car in various home-brewed, fuel line configurations.
Using a surge tank set-up with return line still requires a fuel lines from front to rear, however that fuel pressure is typically from just above 0 psi to 1-2 psi depending on line size, configuration etc.
The high pressure lines to and from the surge tank to the fuel rails are much shorter when the tank is mounted up front.
I use metal lines, fuel injection hose and double EFI screw clamps on the low pressure side; and Earl's lines and fittings on the high pressure side.