Well, been a little while with the update.
I got the intake manifold from my friend. I crossed the numbers and injectors and it's a manifold from a 98 Camaro. The fuel rails aren't going to work because of clearance issues with the lines hitting the coils.
I started looking into what options I have for my fuel situation and have come up with what I think will work pretty well. I have the TT pump in my car from the TT swap it had before and from what information I could dig up it's somewhere in the neighborhood of 290lph (13.5v) so I think I'm good in that department.
I was going to try and get a set of adapters to make the stock rails from the LS1 fit but found out the FPR was missing off of the rails so I started looking around and came up with a fuel filter from a 99-04 LS1 that has an internal FPR built in that sets fuel at 58psi and was cheap (Napa part# 3737, $50.00)
The filter has a pressure inlet, return side, outlet.
Some parts you are going to need if you want to connect rubber hoses to it (cheap):
3/8" (pressure): DOR-800-121
5/16" (return): DOR-800-120
You can get those fittings from any auto parts store and are fairly cheap. To get a line out of the outlet you have to get a fitting from russel which effectively turns the oulet to a 3/8 NPT fitting or hit the junkyard and grab a line off a late model Chevy and make your own fitting.
Russel Part numbers if AN fittings are your thing:
3/8 tube -> 3/8 NPT: 640690
3/8" -> -6an: 640850
5/16"-> -6an: 640860
I found a fuel rail kit from Professional Products that I plan on using (part#10612) it includes rails, crossover, line that goes to the fuel filter.
I'm also intalling a set of Bosch 0280155811 (42lb @ 58psi) injectors. It's a bit overkill for a cam/headers/intake car but gives me a bit of room to grow later.
Research I've been doing for my PCV setup since the manifold changes everything. I'm plugging up the old PCV hole in the driverside valve cover and running something similar to this setup (GO GO LS6 valley pan!):
Also, I found this vacuum routing diagram I figure is good for reference.