Nice idea, but surely in a scrapyard would you not have more than two pieces of track?
I appreciate that your are limited on space i.e. 11 inches wide BUT, according to the rules, you can have 11 inches long by 20 inches WIDE - if I have read that correctly.
Having seen pictures of Barry scrapyard, it is a big wide open space with several loco's stacked one behind the other on several tracks so 20 inchs wide would accomodate you, albeit with one loco on each track.
It will be interesting to see how you deal with the backscene.
Regards
David