Need pict of your 63-65 slant6 power steering setup

Yup, what you're after is a drive pulley sheave that bolts to the front of the crank pulley (harmonic damper). They are all the same, from '60 clear on up through the end of separate bolt-on pulleys for p/s and a/c in about 1981 or so. Should be available without too much cost or delay if you put up a parts-wanted ad here and on the parts-wanted section of the slant-6 board.