Fancy Fuel System Questions

[sleepydsm]

Ok, so I have been planning on going to a twin walbro setup.

Is the stock fuel line really even a limiting factor?

Twin pumps ran in parallel on all the time, will that overrun an aftermarket Aeromotive AFPR?

Are there any other problems from using a twin pump on all the time?

Is the factory return line adequate?

I can't seem to find 1/2" (-8AN) hardline for fuel anywhere. I have read it's kinda bad to run SS line all the way from tank to front of the car, for reliability, as the it is hose and will eventually collapse, etc.

My thoughts were: 2 walbros, -6 bulkhead fittings, then a y block into -8 all the way to a new filter and the rail. -6 return.