What year and Engine Classic??Turns out the alternator is toast, not the engine, thankfully.
Any ideas for cost of replacement and fitting??
1986 Vogue, EFi, petrol 3.5 V8.
In the alternative you could do it yourself, get a new rotor, brushes and voltage regulator and maybe the bearings (if a new rotor doesn't already have them on). Takes no time at all to do.