Oooh, Alan Carbonio!....a much more exotic (and expensive) bike than the all aluminum Vitus 979s and the Alan Records.
I'd say go for the Carbonio if you do find one.
Not sure how the Carbonio frames are really put together, but I suspect that the tubes are actually aluminum tubes wrapped in CF and that the aluminum tube is what screws into the lugs, sans the CF, so the construction should be very much like the all aluminum Alan Records.

I love C&V CF bikes and have good luck with my 1985 Vitus Carbone that I got two years ago and restored to its present condition:

The frame is very solid even after 27 years. Surprisingy, as a bare frame, it even rings like a bell if you tap it near the joints. The ride is stiff and plush at the same time. Stiff because I made it a point to find the smallest frame size I could ride so I can avoid the "wet noodle" situation with the bike.
I liked the Carbone so much that I did not hesitate buying my next bike project which is an even older 1972 Line Seeker CF bike:

It survived for 40 years without asploding at the lug connections, so I think I won't be able to kill it. It also helps that the PO really took care of it as it looks like it was not ridden in the rain at all as the biggest enemy of bonded/lugged CF frames is moisture that causes galvanic reaction/electrolysis at the lug tube junction that will break down the epoxy bond in due course. The pins through the lugs and tubes must have also helped keep the Lineseeker alive through all these years.

Chombi