Jusitn,
I just finished the calculations for a 0.001 thick copper nickel alloy. The resistivity was quoted as 225.5 ohms for a one foot long circular mil. That was a bit esoteric for me so I recalculated the resistivity to 3.74877965 x 10^-7 per meter^3.
I hope that helps.
--Steve Rines,
Ludwigslust, Germany