Advice on buying (or not) this Omega Constellation Chronometer Pie-Pan 167.005 Papers from 1966

Been looking for one of these as a 50th birthday present for my wife (she won't ever wear a small, or...ahem....a cheap watch) with no date as they spoil, for me at least, the symmetry of the dial - dislike buying from abroad (although Zurich doesn't strike me as a huge risk) - for obvious reasons - but I'd be so grateful if you could cast an eye and let me know if all seems in order - can't find out much about the seller, they have stuff on Chrono24 & ebay - any thoughts? Couldn't easily extract photos from Chrono24 so link below and a couple of photos I could cut and paste from the site. Cheers.

https://www.chrono24.co.uk/omega/co...ie-pan-167005-papers-from-1966--id6835151.htm

First and foremost where is a pic of papers?

2nd for $2500 you can start thinking about putting in a few hundred more and getting something in 18kt gold. Big big premium on this piece. Oh ya, and your wife probably doesn't need box and papers.

A beautiful copper but very expensive lake

It looks like a decent watch.
Case has definitely seen a polish but not significantly.
Serial puts it around ‘63/64 but it could have been on the shelf for a couple of years - but I’d want to check the papers match if they say ‘66.
Bit of rotor rub - so unless proof of service it’ll need one.
However, £1,900 is a steep price as noted above.
Even with box and papers.
Dealer’s price I guess.

Too expensive for the condition they are in