I did a search and found some designs but I found them to be a bit kludgy, overcomplicated, and/or requiring an expensive mount or arm. I figured out a simple setup using a cheap VESA mount and one piece of angle iron.
This is pretty easy. The angle iron will bolt to the left side of the chain guide. Replace the bolts PNs 1201, 1231, and 1266 for some slightly longer ones to accommodate the extra thickness of your angle iron. Turn the bolts around so that the nuts are on the left.
Use part 2140 as a template to drill your holes. Transfer punches are your friend. Don't use bed frame iron, it's a bastard to drill.
I found a cheap VESA mount on Amazon which worked perfectly. US http://www.amazon.com/gp/product/B000VKCIJU/ UK http://www.amazon.co.uk/BestDealUK-Universal-Profile-Monitor-Bracket/dp/B0099DDJWK/ This mount allows the monitor to be removed easily. Mount the wall plate so that the PM doesn't block your view.
For 20 bucks in parts I think it's a nice clean solution.