VX PARALLAX HELP

So, in my VX game, there are multiple scenes where the character has to travel through a moving train.

But I can't find a parallax background to match it. The way it works is the character has to move through the train (which is very broken up after being attacked), and there's a parallax train track background under it. If anyone could find/make one for me, then that would be great. Here's what I need:

the tracks themself need to fit so that they'd stretch across 15 tiles in VX, and they are on a grassy area, so try to have some moderately detailed grass and maybe rocks and stuff near the tracks.