Great info, thanks all.
I did come across a mention of the Tag CV2113 (the one from the gen ebay link) > https://www.repgeek.com/tag-heuer/150596-tag-watch.html#post1692200. He made some specific comments about one version being better than another, suggesting reps of this model do indeed exist. Posted back in 2011, so will have to see if these are still around.
Thanks also for pointing me to PureTime's current URL; I'd been having trouble tracking that down. He's got a Carrera Calibre 18 listed (https://puretime05.com/carrera-calibre-18-chrono-ss-cream-black-dial-on-black-leather-strap-jap-quartz.html), which I friggin' love, but oddly the case diameter is listed at 43.5 which is quite a bit off from official Tag site (and all other sources) which suggests case should be 39. Will have to email and get some clarification, because that thing is a beauty.
Rolex 6263 is grand, as is the Pre Daytona 6234, which I've seen repped in other forums.