I sold my OM-10 kit in part exchange when I bought my Kodak Z712is in May. I only got 45 quid for it, but I couldn't imagine using it again, and couldn't face the hassle of packing it all up properly. There was the manual adapter, original Zuiko lens, Tamron 38-70 and 70-210mm zooms, 2x converter, and loads of bits & pieces including a T-mount & Soligor slide/neg copier with built-in lens.
My OM-10 or another is now in the window there (with other 'classic' cameras), with a Zuiko, at 50 quid. Someone must buy such machines, but I notice they have a long residence time in that window. Finding a home for them is a labour of love for enthusiasts.
Good luck! Alan T