Thanks Apple,
I'm considering a very cheap 172 from an acquaintance - no RWC due to super low price - a risk I'm willing to take given he's only after a few hundred bucks (stock except for exhaust, full service history, minor panel damage down one side, drives fine but needs tyres and rear pads in the near future).
I'm starting to think that if tyres and pads aren't enough to get it a RWC, then I could always just sell it for parts. Roughly what would a generally solid, unregistered 172 be worth?