what about pulling the pump & pulling the "cross" a bit forward or pressing it in, whichever is needed? (support the shaft in the rear if you press the cross rearward) so as to align the pulley. if the WP pulley is too far forward a potential would be to shim the crank pulley forward (spacers are available) and spacing the alt forward. EDIT been a long time since I was there but buttonhead bolts on the wp will give more clearance from the pulley to the pump if needed