Trevor at Rockley yours would be about 2,400 Cobbs about 3400 and 4,000 at Parkstone Bay
+'s for dry stack are as Brian says. Pontoon berths are more sociable and handy for just going down the boat fiddling or sitting on and sipping wine or whatever takes your fancy.
Rockley facilities at the yard are basic but it does the job. Facilities at Cobbs much better with general store chandlery proper engineers and club house all at hand. Parkstone bay similar to cobbs without the club house but does have a nice but expensive cafe'