From what I can tell the original Roper Plates are no longer available.
The last batch that was offered via Scud appear to be sold out.
It looks like you can get a similar item from Gutsibits which seems to be an unauthorized copy (it's not like this was patented) and we might debate the ethicality of that...
https://www.gutsibits.co.uk/pr/TheShop/index.php?f=d&Model=&q=ENA00004
At this point it looks like the Gutsibits version is the only option available
So here's the installation video for the preproduction plate. The fit was excellent. Obviously this was the first time I installed one of these plates. It took me a couple minutes to figure out how to remove the oil filter assembly. Cleaning the gasket surfaces probably took the most time (aside from all the filming). With this plate you don't need to make any modifications to the side stand bracket. Just loosen the large bolt onto the crankshaft, install the smaller M6 bolt and then go back and