Looking at it - not all that long ago that sort of car would have been passed along for free either due to loss of storage or in the hope they'd at least stand a chance of seeing it back on the road albeit in someone else's care. Could easily have been stripped for spares. Might even have been stripped as it was known to have a particularly good gearbox.
There's a LOT of work to do there. Not all that long ago any work to a screen surround would write a car off. Even if it looked perfect and had an MOT taking care of a "few minor issues" (perhaps jumps out of gear or brakes not quite 100pct) can take a lot of parts, specialist work, effort.
Did one sell for 20 recently? I think it was a low miles low ownership preserved car. What's the most a "restored" car has sold for? By that I mean a "basic get it back on the road" rather than an open cheque book Thornley Kelham type restoration... Even if the labour was free and the storage was free there's every chance a car starting from that state will always "owe more money than its worth".
Putting a value on something like that is always going to be tricky. Start from its value "done" and subtract everything it needs at middle of the road specialist prices and it would be a big negative number. Then again as a hobby it would keep you out the pub and off the sofa for a lot of evenings and weekends you wouldn't need to look for another project for a while.
Not sure if that's made me look at my project more fondly or ask for offers
