I think he means twin entry rail.
You can get a good rail for $150 that will suit ID 1000/2000s
The real cost is in the lines and fittings,
You also don't need a massive fuel pump feeding the surge tank, as thats where fuel is returned too
and you definably don't need 2 feeding it.
I have a nismo lift pump and 2x walbro 400s in the surge tank feeding the rail
Even that is over kill in some people's opinion