Love the Ryca stuff! Mac is pretty cool too!
I like 'em too, but neither are working with a long stoke single motor...which is something I'd like to have for around town romps. The closest is the Savage motor, which is perfectly square and, frankly, a little less visually appealing than some other singles out there.
To the best of my knowledge, the only long stoke single made is the Enfield, which might be an option at some point if the quality continues to improve. AFAIK, its only on par with a China motor in terms of reliability. No reason not to own the real deal (i.e. a vintage single) if there's no benefit on the reliability front. And, yeah, this would be a nostalgia thing for me because my first motorcycle was a '51 BSA B33 and I simply miss having a thumping piece of crap to ride that makes you feel alive/grateful that have arrived at your destination. Leave early and clean. Arrive late and greasy. Ah, the good old days...
Cheers,
--Rich