no experience myself, but a friend got stuck in east Africa with a stuffed rear shockabsorber. He had it transported by the ADAC, being a member.
Otherwise I could offer to get your spares organised. Please define the exact part(s) needed and maybe an email address or telephone number in Argentina.
My email is: vaufi et t-online.de
Only when we pause to wonder
do we go beyond the limits of our little lives.