Mackay Multilink make a beach trolley which will suit the Sabre and is adaptable to one of their light trailers. This setup is used pretty widely in the Sabre ranks. It’s my opinion it’s a bit inadequate as it comes from the factory, and needs tailored supports and better padding for trailing any distance.
John Dixon (Iecon) does a tailored alloy, plywood & fibreglass beach trolley which fits the boat very closely and offers good support.
MRS