I know this is a bit of an old thread now and the listing has long ended but I had the pleasure of being able to manhandle this frameset last week and IMHO a Raleigh this is not! It is currently in South Wales and if its backstory is to be believed is very likely to be a frame made for the Super U team in 1989 ( but the older style 753 decals make me question the date or authenticity) and has a front derailleur hanger and race number bracket which a team replica Raleigh frame would have not had. The BB shell stamp is not a stamp, it has raised lettering, and does not give away anything regarding who may have ridden it. The decals are incomplete too so it might have been a training or spare bike perhaps.
As Matt says above Cyrille Guimard had bikes made by frame makers other than Raleigh so I'd be intrigued to know who made this, when and for whom...If it was the next size down I may well have had it rather than embark on my Dyna-Tech project as no doubt it has an interesting tale to tell.
1989 Raleigh 531C Race
1990 Raleigh Dynatech Castorama replica
1991 Raleigh Dynatech Lo Pro TT
2012 Raleigh Airlite Campagnolo Centaur 10 speed
2013 CYFAC Proxidium Campag Athena 11 Speed
2013 Team Europcar Colnago C59 KoM edition