Budget LS1 cross ram intake

[jlcustomz]

I'm attempting something most experts would caution against. This will be a low budget/high labor project. Will look similar in shape to the performance design intake , but with a 2 into 1 merge on plenum to mount stock throttle body.http://performancedesignllc.com/xr/
My first attempts at keeping costs low is cutting up a stock ls1 intake to leave the first few inches of runners to attach to with quality rubber connectors & clamps. ( seen this on 4 cyl setups). Planning on making runners 12 to 13" long for good torque, Probably alittle taper bigger twoards ends , Definitely with bellmouths in plenums, And the straight shot should be good for top end. Material will be aluminum or even stainless steel.
Trying to gather as much info as I can to not just be guessing here.Hope to at least not loose any power anywheres. This design is not common because of space requirements ,complexity & cost.
If I use stock intake, will have to connect to D-shaped portion of runners.
Plan B will be buying & cutting up edelbrock alum intake so I don,t have to guess on injector mounting.
Anybody got any good info on what I'm trying to do here on designing??