Silly question...silly answer...
GBP10k to GBP80k dependant on component hours left and a small amount for tidyness (oh and a mortgage for fuel)
or the same as in the rest of the world plus GBP4k pack shipping and no doubt 2k to 5k for putting it on the register of your choice.
Just make sure there's no Kawasaki components on it like gearbox or blades as these may not be acceptable by the authority in your country.
OOW
p.s.if it ex military it will probably be cheaper as it will never get on a public CofA
