Welcome to the forum,
Joe!
In my opinion, you'd be better off building an end to end layout in that sort of space. It'll be more realistic, both in terms of the scene portrayed and the geometry of the track involved.
If you're doing Irish outline, as I'm assuming (and we all know what assume does!) from you posting on this forum, there are some very nice terminal stations you could pick for a prototypical model, should you choose to go that route.