I've spent some enjoyable time looking at the 1994 Dawes Catalogue, available on this very site:viewtopic.php?t=94770
So it turns out that the One Track was the entry level model, with Alivio groupset and tig welded 4130 cromo frame. It appears to be a budget imitation of their rather lovely Edge range, and colour scheme straight from the Edge Extra.
Although it is a nice thing to see the bike in context, it has got me hankering after a fillet brazed Edge now, there is something about British Steel frames that really appeals to me. So my budget purchase could potentially lead on to more costly projects in the future!
I got a call from the LBS, BikeBase in Southend on Sea, to say that they had got the stem out, apparantly it was a tough job. I'm lucky to have a shop that doesn't mind taking on jobs like this as I could understand why a lot of places would just turn me away for an easy life. Since I have had the bike back I have fitted the new stem and bars, and some new grips. Now all I need to do is clean her up, fit the Deore LX mech (the Alivio mech has a very lazy spring and is generally ready for retirement) and take some photos!