Duck,
Re my Cessna SID remarks, I was flicking through the Trader, and notices a non-SIDs and cable AD C-172, with allegedly very good engine and prop times to run, for $16,500 -- I think that represents what the present owners estimate the SIDs plus cables is going to cost, versus any kind of market value.
In short, it is being advertised for scrap value, the engine and prop are probably worth around $10-12,000.
Tootle pip!!