Opportunity only ever knocks once and usually at the worst possible time. I too had the chance to purchase one of these cars back in the 80’s, but money was a stretch. I have since learned that it pays to overcommit sometimes as these old cars will never be made again, and the quality of materials used back then is often far superior to todays recycled metals and cheap plastics (even good plastics only have a life of 40 or so years). I sold my Maserati Bora for $320,000AU 2 years ago, it cost me 85,000 back in 2000 and everbody thought I was nuts. I have always overstretched myself buying old cars since the experience with the 2000 GT and so far it has been win win.
So if you see a an old classic and it pulls at your heart strings buy it. When the wife screams, say "hey honey, you know that new house you want, well this is gonna pay for it "