The pro forehand spin ranges can be from 1500rpm to 5000rpm.
Interestingly, most of the events tend to cluster around the averages. Sampras/Agassi 1800rpm/1900rpm, Fed/Djok 2700rpm, Nadal 3200rpm.
I can't say that Nadal 90mph forehands all have 3000rpm of spin, but I think some do. That's what makes his ball so fearsome, the combo.
If the ATP would create and release shot spot data bases we could correlate speed and spin more clearly. If they would let us do scientific multicamera filming, we could even correlate the racket speeds.
As for the club spin speed thing. I am interested in pursuing that. But just impressionistically it's much easier to create a 3000rpm forehand that goes in that a 90mph forehand that goes in. And the club fh's with pro level spin probably have half or 2/3's the speed. Just guessing but may try to create some data--in the process of cloning myself which could free up time--unless fly fishing takes over.