I talked to a guy at the Pomona Swap Meet a couple weeks ago that specializes in BBC bolt on accessories. Mostly Pulleys and brackets but he also does steering gears and pumps. His contact info on his card is...
E-bay: gotpulley
E-mail:
bigblockjim454@cox.net
phone H (480)981-3096
Phone C (602)751-0454
Might be worth a phone call if he has what you need.