I concur. I'd have you at about 115# spine for woodies, which is a deflection of .274 if converted to carbon standards, the Gold Tip Big Game 100's are about .280 if I recall correctly. Very close, so I believe those would work nicely for you.
Overall mass weight could be an issue with the carbons though, you'll want at least a finished weight of almost 700 grains or you'll be below 8 grains per pound. I would think a heavy point and maybe a lightweight weight tube would get you there without too much difficulty.