Hi Nick
Took a quick listen on soundcloud... I think I got the right version!
You mentioned early on that you were thinking film/TV. As much you love the hook "Gonna Take A Train" (it's cool), it's very specific and therefore also much less marketable for film/TV. You might be better off with a more generic "gonna travel" line-- don't have the exact line... Gonna go away, gonna hit the road, gonna travel far, gonna leave this place.... Just brainstorming. It needs to generic while still being a good hook.