MB140. Steering bush kit

[Paultenerife]

hi I've recently purchased a 95 MB140. I'm based in the canary isles..when I took her for her ITV (mot) in Jan there was noticeable play in th LH side steering reverse arm bush...I managed to torque it up and with a degree she got through the test...now 3 months later the play is back so I'm guessing I need to rebush ?
Does anyone know where I can source the bush kit?
Really appreciate yr input, the local suppliers here look at me as if a crazy guy is asking!!
Cheers.paul