[Si Coe]

The closest you'll get to midweek is Cheadle on Thursdays, or Ribble Valley on Fridays.
Not sure what the buggy situation is at Cheadle these days since its really a TC club but they normally have a buggy heat.

Mid-week racing by Bury seems unlikely at present since whilst there is interest in it, none of the organisers are available weeknights. Dave at Roundabout hasn't sounded that interested about a couple of options presented to him. So at the moment unless some else wants to start organising races its not likely to change.