I'd be interested - in both cans and speakers. I can probably hold it here at my home if that suits, I'm outside Naas in Co. Kildare. No direct public transport to me (nearest train station is about 6k away) but with some coordination I'm sure we can work out lifts etc. I have 2 rooms suitable for use, one is set up for speakers etc, the other can be easily used for headphones. Most of my stuff is DIY, all sources covered, vinyl, CDP, PC based, valves, solid state, horns, quads, HD650, k701, etc.
There is a local hifi forum here in ireland, I'm pretty sure I'm not allowed link to it from here (last time I posted here was when we set up the forum and after I posted it here that time the thread was deleted by a mod....kinda put me off coming back here tbh) but if you google for "hi end hifi ireland" you'll find it!
We've had a few meet ups once or twice a year, they are good fun, great to meet people etc. Its usually been more about non-headphone stuff, but no reason why it wouldn't be of interest to have both.
Declaration: I'm involved in the trade now, and there are probably plenty of rules about where I can or can't post etc. Don't really want to either upset mods here, or other users etc etc. I have written to jude to ask about a new registration, but haven't heard back yet.
Mods if you want to remove this post, feel free and I won't post again.