Re: What model is this caravelle?
I don't know. But I do know that in 1972 I bought a new Caravelle 18' tri-hull bow rider and it was an excellent boat, well crafted and solid as a rock. My wife and 4 kids spent a lot of summers enjoying that boat. That looks like a fine hull, worthy of restoration and total enjoyment when finished. I have restored a boat and it was a lot of work, but well worth the effort. That ought to provide you with a very smooth ride.
Really I don't know what difference the model makes. The basic hull is the basic hull. Additives, like I/O instrumentation and all that are usually OEM driven. Example: if you have a Mercuriser engine, you will have a mercruiser outdrive, instrumentation and other amenities. If you have a depth finder, it will be Hummingbird, or other popular brand....can't remember the other one right now. Bilge pumps and all that will be after market.
Heck, if it's for sale, I might just buy it myself. Is it?
HTH,
Mark