1982 Maico 490 Resto

I have chatted with him online . I want to learn (try) how to rebiuld it myself before sending it off .
I may be at the point where I will have to though . This Corte Cosso shock was only used in 82 and problamatic. Mine has been converted to an Ohlins sealhead which may be obsolete to make things worse. I found 1 guy that wants 1200$ for a rebuilt Ohlins but NO way am I spending half the cost of the bike on a shock !