Ian,
No help to you I’m afraid but for the benefit of others Eastleigh College in Hampshire occaisionally run th oned on Monday Eves. They need a minimum of 10 students currently there are 13 (I think)of us) John the tutor is very amenable and is happy to let more experienced ( you have to demonstrate competence 
work on thier own projects.
They have 3 vertical mills, 6 ? (at least) 6″ centre lathes a surface grinder, cylindrical grinder and the usual surface tables etc. They can also do a bit of welding – MIG I think.
They offer this for the autumn, winter & spring terms. I started last autumn but the course was not run again until this autumn.