If you aren't already, this below link is a good standby thread to follow. It may not be yield quick results but Ash does a great job finding pieces to share. Over time I have seen a fair few Gen1 & 2's shared in there that have all ended quite reasonably. Good luck in your search!
https://omegaforums.net/threads/recommended-modern-omega-watches-on-ebay-not-inquiries.5447/
@Scarecrow Boat
Thank you. I found and just bought an X-33 2nd Generation Military Special Order - Ref. 3291.50 - Full Kit from fellow member YurRomeo1; a seller with very good credentials on this and other watch forums.
Congrats! Definitely have to update the tread when it arrives.