Hi
I think you will find the CAA less than receptive to an OH 58 due the possibility of cross comtamination of parts to the 206, however that may just be that no one has tried! If you do get it on the UK register it will be in "permit to fly" only, as per all of the ex-army gazelles, scouts etc so no passangers only crew, and no your wife and kids in the back cannot count as crew