You didn't specify a locale but A US company is looking for ferry crews:
Avia Crew Leasing
2040 S. Alma Sch. Rd., STE 1-390
Chandler, AZ 85248
USA
Age 60+ OK, no other contact info given
Include last PC date and A300-B4 time
The ad from Davik International for A300-B2/B4 crews for Hajj, July start, said under age 60.
Good luck.