The BBC reported 3020 as the capacity when we moved in there. Hopefully they didn't just lift this figure from Wikipedia as that also cites 3020.
I've been in crowds of 3000 at Dulwich Hamlet FC - the ground they were evicted from last season - and suspect we'll have similar issues on Sunday to the ones they used to face. Specifically the lack of terracing will mean there are 2000+ present but there will be a lot of restricted views. The fact that about half of one side is effectively no go for spectators who want to be able to see the match due to the presence of the control tower, substitutes standing up to watch the game and so on, is likely to exacerbate the issue. There are some fairly obvious pinch points as well once the gates start to rise if people want to move around the ground. I think it goes without saying it would be worth arriving a bit before the traditional five minutes before kick off given the ground access arrangements.
All in all I'd say a bit cosy and potentially quite frustrating as a spectator. I'd prefer that to the 400 or so of us that were rattling about in the ground v Dewsbury mind.
CMG - I'm season ticket so am not totally au fait with individual match sales but am not aware of a sales facility at Ealing. I'd suggest buying at home and printing off if that facility exists. They scan a QR code on the way in these days so there should be no issues at all that way.