The centerforce may be good for pulling a boat but from most of what I have read, life expectancy will be radically reduced, on top of that the CF is a pretty heavy clutch which will make it really uncomfortable in stop-n-go traffic (at least). These details come from reading not experience. Many who race their rangers, and explorers still use factory clutches and are very happy with the way they perform.
I did mine in Feb. and went with a Borg Warner Brute Power kit and slave cylinder. Came with the clutch, flywheel, pilot bearing and clutch guide. Cost was about $230 for the kit, slave was another $60-$70. Did the install myself. I like the set-up, feels similar to stock, though time will tell how well it will hold up.
If your interested I have a new factory slave cylinder, newer model, I'll ship to ya for $60.