Installation is simple. All that is involved is removing the grip panels and attaching the CPE in their place.
A stock adapter is available which allows AR-15 stocks to be attached.
In the United States this kit could be legally installed on any 1911 without violating BAFTE rules, as long as no stock or foregrip is attached. As soon as a stock or a foregrip is added, the gun must be registered with the BATFE.
I do not know of any US distributors, but I am sure this will be picked up by US importers soon.
UPDATE: Video of it being used. Thanks to Gutao for the link.
UPDATE: Sven just told me that the 1911 used with the kit needs to be mil-spec. The DWJ magazine reported problems with non-mil-spec sights interfering with the kit.
[ Many thanks to Sven (Defense and Freedom) for emailing me the the info. ]