Sigma 50-500 (Bigma)

OK due to health issues I'm reluctantly having to part company with my Sigma DG 50-500 4.5-6.3 APO HSM lens. I bought this second hand from SRS a few months ago so as you will guess it is in good Condition. There are no issues with the glass, or focus, and cosmetically it is fine.
Realistically I know I will lose a bit of value on this but I would like £600 Inc p&p. Alternatively if you have a m4/3 camera with an EVF and lens or lenses you might consider swapping then I would be happy to negotiate.

Forgot to say that there is included a camouflage waterproof cover in a tree pattern ( that was over £50 ) and has never been used...

Realising that I'd suffered Kindle fingers I notice the asking price is a bit steep.... try £575

still steep

so is the hill near me.
Would you like to make an offer?

Any mirror-less with a viewfinder considered...

Deal struck elsewhere
Thanks for looking