Sorry to hear about yet another awful experience - will Mr Mcmaster never realise how much harm he is doing to his moorers, and to his own reputation and standing? It is a desperate situation for those obliged to stay in what seems to be a really grotty, muddy hole with the prospect of having to cope with a long, cold nasty winter ahead. No or little electricity, sanitary facilities, water, not even a proper place to tie up to!!
Re alternative moorings, apart from those already suggested, how about Brinklow or Calcutt, or a bit further afield - Gayton.
Do hope you manage to get sorted out soon.