Wilbur,
I had a head gasket go on mine. I had the engine remove and drilled the block and tapped for titanium studs, also had all seals and gaskets replaced. It is as new.
I saw a '98 Deville for sale with 86,000 miles, always kept garaged. I don't need it, but would still like to have it I don't drive enough any more to keep the batteries charged on my vehicles, so buying another isn't a great idea for me.
This weekend we'll try something else a little more robust. It's a bit more complex than anything before but hey...nothing ventured, nothing gained...they say...