I think Guy Black found the necessary tools for rebuilding Hawker fuselages in a South African scrapyard, along with the odd bit of Demon - isn't the tooling something to do with tubular fuselage frames which are squared off at the ends? His particular interest is the maginificent range of Hawker biplanes he is slowly bringing back to life. For Hurricanes read Tony Ditheridge at Milden, just across Kent and the Thames (by Hawker) from Guy. I won't talk about structures or techniques any further 'cos I know bu@@er all about it! The absence of Hurricanes in the rebuild market was perhaps more to do with the pre-Russian thaw absence of suitable airframes and the usual preference for Spitfires!
Both Guy and Tony and their teams are magicians!