Collectors club models can be purchased by non members at :

https://bachmann-spares.co.uk/page/exclusive-models

That part of the site is new, so the N Gauge section doesn't have anything yet, but an email to them will get you a response.

In the mean time, this site has the news and the link I posted above, at the bottom of the page :

https://www.ngaugenews.com/post/n-gauge-lner-v2-and-coaching-stock-liveries-revealed-in-bachmann-graham-farish-autumn-announcements

I am not a member though I have been tempted a couple of times but struggle to see it as value for money. I think offering the Club models to club members only, for a few months at least, entirely reasonable. Thinking that the run lengths required to get a decent unit cost to Club members is now higher and this way of shifting the overs will encourage members not to prevaricate and is slightly fairer than them slipping Out the back door to Rails, TMC etc

some poor quality pictures but sharing anyway

the hawksworth coaches look rather nice