I have an old Revell CH-53G kit which I got for £cheap a few years back. My intention is to do it as an RAF Westland Weyland HC.1, the backstory being that after the first RAF Chinook buy was cancelled in the 1960s, Westland used it's Sikorsky connection to propose a licence-built CH-53 with more UK content, jobs and spend, and the government bit.