Well, it looks like the cylinder is going to be exchanged for one Fredette has. US Chrome had a 2 1/2 week turn around, Powerseal was out about 2 weeks. MCB did not have an exchange available, but had a 7 to 10 day turn around. But as Fredette has one on the shelf, all it will take is 1 day turn around for him to get his out to me after he gets our current one. Thanks for all the suggestions everyone.
FWIW - the 240 kit idea was not because we really were seeking to do such a mod, only because it appeared Gorr had one availble, quick turn around etc. Turns out that page on Gorrs site is way out of date - sold it long ago.