I bought a 145.022 69ST, my first Omega, in 2012 or so.
Lume condition, DON bezel, hand and dial originality, step dial, full length 1039 bracelet, no Moon inscription, original pushers and crown were critical elements. It took a year, but I ended up getting mine on eBay for about $3000. Had it serviced by an Omega authorized independent (NOT Omega direct) and it ran great, looked really good. Crown gasket had liquefied and smeared all over the movement and made a mess. I replaced the crown, not pushers, and it couldn't pass water resistance testing. It may not have anyway because the case back had some corrosion around the gasket area. I never wore it because I was afraid of damaging it.
I sold it last year and bought a new 3861 Moonwatch a month later with what I got for it that I love and wear often.
My advice, don't skimp, don't settle. Unless you're committed to tracking down original parts if you buy something that's not quite right, buy the one that ticks all of the right boxes. You're paying either way, though. Don't send it to Omega unless you want a 3570.50 look. Decide if you want a waterproof watch or an original watch. Without a significant amount of work and money, assume that the original pushers and crown cannot be reused and will not have serviceable or passable gaskets. People who can or will attempt servicing the pushers and crown, let alone considering if it's even possible, are exceedingly rare, if they exist at all. Then ask yourself if you will wear a rare, expensive vintage watch day to day that may not be waterproof. My fear wasn't diving or falling into a pool, etc. It was a freak rainstorm, inattentively washing my hands. I didn't want to take off my watch every time I might come in contact with water.
