If you want a Capiche 50 but don't like the UK/US exchange rate, why not just but the plans and then have them made up by one of the US cnc kit cutters?
The plans, only, are on sale by Nexus in the UK - http://www.nexusonline.com/pages/nexusdirect.cgi - and you can get a canopy/cowl from them, as well [note there are plans on this site for two sizes of Capiche].

Best of luck