Tenneco. That brings back some memories. Give Metro a call. They were maintaining the old PHI 105s for Air Med until they went to 135s. There's a lot of 105 stuff in Africa. Maybe post on pprune also. Just need the metric QD fittings and any hyd mule will work. Other than the MR rigging tools what other tools you need?
The BK tools are still used so might by tough to finds good deals.