Hi Dewdrop,
I think for the sake of progress I would finish off my PPL with an outfit which ensures some continuity.
You don't have to burn all your bridges and can stay a member with your old club and go back to them and fly the clubmachines when ready.
I think that they would understand that you want to continue progressing and that it is reasonable to want a little more continuity than they have been able to provide to date (probably all beyond their control)
Keep us informed on your progress.
FD