Our committee has organised a one day outing from Dublin by bus to visit the Difflin Lake Railway (home to Ireland's newest steam loco, 2003-vintage Duchess of Difflin) and Donegal Railway Heritage Centre. At the latter we hope to make a presentation using the proceeds from our previous outings towards the museum's fundraising efforts.
Places are limited, details at https://www.tailtetours.com/hills-of-donegal-tour
We added a blog to the Táilte site a while back going through the history of the various termini Belfast has had (though already it's a tiny bit out of date ), https://www.tailtetours.com/post/a-virtual-tour-of-belfast-s-terminal-railway-stations-past-present
One observation from his reviews, they can be a bit one size fits all. For instance, I've seen him criticise big Pacifics over their slow shunting ability, when really it's not the type of thing the prototype would have excelled on either.
Sorry just seen. Yes, I remember 8 car 2600s in action on the northern suburban in the mid 2000s though originally 4 was more common, but gangways were in use.
They weren't unknown to run in multiple with 2800s on DSER line services and again the gangways were in use.
Re: specials, Táilte did look at operating a tour taking in GVS but unfortunately resources and scheduled works precluded it this year, however we've had some nice chats with NIR people about the future...