I'm the first owner and the lens is like new and flawless. I bought it earlier this year and it has seen less than 500 actuations, more like 200-300.
Ideally I'd like to trade it + €€€ to me for a Rodenstock HR 70, already R-mounted too. Price difference would depend on your lens mount, condition, etc
Will post some pics on Sunday.
Thanks for looking,