theres a place in Karachi who remanufacture gas filled shocks and struts to original or better than original specs with new control valves and damper rod twin lip seals, their workmanship is amazing and the results are better than OEM or factory units.
I had them make me a set for a G100 charade I restored, they were worth all the money, perfect compression and rebound functions, which made the car once again behave like driving a bigger sedan (the G100 ride is amazing if setup correctly)