Using original LQ fuel lines with dual tanks?

[EightiesOnly]

I am doing a 2001 5.3 swap into my '86. I am wanting to run an inline fuel pump in front of the dual tanks switch and use the original aluminum fuel lines from the 2001. First, is this going to be possible? Also, are the original steel lines coming from the tanks to the switch going to need replaced with high pressure lines?

In this pic the dark grey would be the steel lines and the silver would be the aluminum lines off of the 2001.



Any suggestions would be appreciated. This is how I've been running it for four years with a low pressure inline pump and low pressure hose running to a 350 TBI. Also, the main reason for wanting to do this is because I'm in college and have a minuscule budget.