Anyone on the River Dart with a Mastaclimba this weekend?

[KAL]

Is there anyone on the Dart this weekend who might have a mastaclimba or similar? I need to get my masthead transducer down to replace the vane and would love to try one while the windspeed is low!!

This is not to poo-poo other methods of reaching the top! If you have the means and would be willing to loan the kit I'd be pleased to hear from you.

Thanks in anticipation.