Was thinking that, you could possibly, at a push, scrape together (very) short, static, representation of a goods train with the SLNC tank at the head of it.
Sligo is a bit off the mainstream tourist trail, (unless you are a Yeats fan or a surfing head) which is a shame but here we are.
As mentioned, an attraction like this will struggle to make ends meet even if it gets off the ground.