1979 chevy 350 in a 1972 , pulley issues

[twoskies]

Hi

i have a 1972 c10, motor that was in it when i bought it was a 305, didnt run, was originally a 350/4, found a good running 350/4 out of a 1979 el camino, numbers do match up for a 79, so probably correct)# 14016379, heres the issue, most my fault, it did come complete alternator ( on passenger side), long water pump , the pulleys on the motor lined up, the 1972 original power steering did not, i tried changing crank pulleys , shimmed out crank pulley, never seemed to line up correctly, got close but not right,
so, thought id go back to square 1(only have to adjust power steering pump this way), heres where i messed up, pretty sure originally had a 3 groove on the crank but i cant find it,the water pump has a 2 groove and the outer wp groove lines up with the alternator

does anyone have a set of pulleys for a 1979 chevy 350 that i can buy or at least the numbers so i can search myself
not against going with a new set of pulleys but dont know what to look for

ill post pictures tomorrow, ran out of light

any help appreciated

Thanks