I can find a hack that allows skills (longblade etc.) to exceed 100 max, but is there also a way to allow attributes (STR, WIS, etc.) to exceed 100?

I don't know of a hack for that. IIRC, even enchanted items cannot take your attributes above 100, and they will for skills. I don't think it's possible--or if it is, it will have...unforeseen consequences.

There is a program called dfskills that can be found http://www.uesp.net/dagger/files/dagfiles.shtml It allows all skills and attributes to rise to 127. I have no idea how the program will react to a dosbox environment.

I have it, my Running is at 119% . But by attributes they seem to mean skills. STR, WIS, END, etc is still capped at 100.