Simon, Not sure if Bok to Bach would have got played at at The Wheel, @Julianb would know for sure.
I remember it as one of those records that suddenly appeared one night at The Torch and got played three or four times that night and then every week after. I'm not sure which DJ had it as I wasn't really paying attention, maybe Alan Day.
Being a UK record it probably had plays before the Torch, possibly West Midlands, Blackpool, Sheffield or London. After going big at The Torch other copies would have surfaced fairly soon as collectors searched shops, especially down south.