[CourtesyFlush]

I think the river is borderline. I'm not sure if he is very likely to call with the hands you are beating. I think you are very often ahead here, but if he is decent he will likely lay down his 44-99 (minus 77) to the river bet. Personally I don't think he is likely calling enough to make it worth losing your stack to an oddly played Q or 2 or 77 that hit.