Hello David
It would be great to see "Saffie" again in the Solent, We had many seasons cruising in company with her then owners on our seal 22.
Several places to dry sail her from would be Bucklers Hard on the Beaulieu river, there are a few Parker 235 who launch and recover from there.
The other place would be Calshot activity Centre albeit a bit away from Motorways.
Mooring, there are loads of marina on the Hamble. MDL, Universal Marina or Deacons right on the M27, again there are 3 or 4 Parker 275s there .
Portsmouth Harbour also have several pontoons marina,s Wicor marina Hardway , Quay lane marina.
I am sure there will be lots of other people adding idea,s to help you find a suitable parking space
Hope this Helps
Peter Lowry
Vice Commodore