Uhhh, how much gas is in the tank?
I *love* the Lario, but they are hard to sell. A guy near me tried to sell his pristine Lario for $2500 for years without a nibble. I don't know what it eventually sold for. It takes a dedicated enthusiast to want one. The one I have showed signs of having blown up twice when I got it at 18000 miles. Because of this, heads are very difficult to find. They not only dropped (mostly) exhaust valves, they also wiped cam lobes.
I *wanted* the one I bought, and gave $1700 for it as a runner, but it had already had the mandatory rear drive mod and valve mod done.
It wiped a cam lobe 5000 miles later.
I really enjoyed fooling with the 4 valve engine, but when an Aero engine became available, it became a no brainer to go for it. More power *and* reliability.
So, what's it worth?? Whatever someone will pay. If yours is a stock original that needs completely gone through, I'll throw a dart and say a thousand. Your best bet would probably be to float it out on Ebay and see.