I've got a 1960 Shooting Gallery but it's not for sale. Had it for years, sold it to a buddy and this year I bought it back. Fun game that the family missed. Fortunately it seems like these games still turn up on occasion. Just not as cheap as the old days.

Pinsider ZNET has a super rare Sega Monster Gun listed as being for sale.
http://www.pinballowners.com/znet

This one was available not too long ago. Don't know anything about the seller though.
https://6x6parts.com/midway-shooting-gallery-coin-operated-arcade-1960-projectile.html

This guy grabbed a White Lightning (earlier this year?). Not sure if it's available for sale?
https://forums.arcade-museum.com/threads/damm-i%E2%80%99m-lucky-take-a-look-at-my-latest-2-for-1-rare-and-cool-em-grab-who%E2%80%99s-played-either.486489/

Good luck on the hunt. You'll find one eventually.

Yes, I'm locked out of KLOV as well. I had a membership but changed my email and now can't get back in to change it. I still lurk there once in awhile.