Finally got hold of a phone number and talked to him last night. He's alive and well, lives in Cadix, south of Spain, mending, welding things.
Here is a recent photo found on the TUMT web page:
And the same, 33 yrs back!
He greets you all but is about as confortable with a computer as a fish with a bicycle. Those who would like to talk to him, send me a private message and i'll mail his phone number.
hugs
ta!
I don't have photoshop or any similar programme on that computer so i couldn't get it to be bigger than the original (which i stole in chazz's message on fbk.