So you want to see if the car is worth fixing before you try to fix it. I get it.

If you can simply get the thing to start and run on all cylinders for 30 seconds or so, then it's probably in good enough shape to be worth fixing the alternator before proceeding to the other stuff. 30 seconds without coolant circulation isn't going to hurt anything.

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 401,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 26,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
99 Mazda Miata 183,xxx miles.