I have said before, hanger queens mask all sorts of issues just under a shiny surface. Our S2 was low milage and we ended up fixing a lot of things but since then it has been wonderful for 5 years.
Starter Motor AirCon Compresser and Pump Electrics (Various) Cooling Fans
When you finally get your car then make certain you buy a decent ODB reader and software so you can inspect things during your first few years of ownership. The bolts on need care but the hardware under it is rock hard and will last for ever. Unless you take out a ditch or tree in the wet. Go carefully in your first 2000 miles. Take an open track day and learn the tail swinging angles. Its wonderful.
The issue with Morgan is not the repair but getting the spares. The factory closed for a week recently. Can you imagine that from BMW ? Also the cars are so hand built that the parts simply may not fit the car when they arrive. I had that on a door trim piece. You cannot rely on them as a daily car without backup.
I do not jest when I say we bought the ex factory demo Aero Coupe with the intention of selling our S2 but in the end we actually stuffed the savings and retained the S2 instead. We could not bring ourselves to part with it. The S2 and Coupe seem so different considering the common parts that they felt like different experiences.
These things get under your skin. Just as well. If we ever meet I will share the story of our Coupe.
Hang in there and ask them to loan you a car until yours is free. I think they owe you something. If they have skin in the game (loan car in your hands) then they have a focus on getting it done. If they have your money then they should be giving you the experience you have paid for.
Everyone loves a Morgan. Even me, unless it's broken again.