There is a slip at Rock opposite the Mariners pub which gives access to the beach. This is fine for launching.
There isn't a lot of room in Rock for trailers. You could leave it high on the beach area but not on spring tides.
The people who look after and launch our boats at Rock are Rock Marine services and they will have storage to keep the traver and can sort you out with a mooring if needed.
Contact them here
Any other local info let me know and I will see what I c an do