Maserati would get my vote too, I've looked somewhat longingly at a few lately but certainly don't have the cash to do anything about it! Finding a tidy 3200GT sounds like a good move, I think the later ones are supposed to be fairly solid as it was post Ferrari control, it's the early ones that were a bit iffy. The 4200 has the better rep but I think in reality a late 3200GT has just the same build quality.
I drove a Cambiocorsa a while back and it felt like a lovely car, much more luxurious than the GTV I must say, but you are very aware it's a big and fairly expensive, heavy, rear wheel drive car. I think you'd be nuts to buy one if you have any desire to drive hard on a regular basis, the GTV is so controlable and chuckable, but as a true Grand Tourer, the Maser is a lovely place to be! Sounded like a propper super car too!
The one I think really stands out though is the Gransport, which had quite a significant revised suspension setup and new styling. The press heaped the praise that Maser had finaly cracked it, but, that shows on the residuals. You won't get one for less than £30k!
I still may look at a 3200GT in a year or so... having shelled out a fortune lately on the GTV it can't be much more expensive!