And Feets, my cam's 0.050" durations numbers are very close to yours, when you look at it at the valve (i.e. adjusting for lash).

If you're comitted to the hydraulic roller, and what you are looking for in that car, I think your plan is pretty solid. You can split hairs with a few degrees duration, and the LSA, but until you try a couple of different cams, you'll never know for sure, IMO.