In my experience in the trade, if you the frame owner has the original sale receipt, it may be that the frame had a lifetime warranty, in which case Raleigh would supply the equivalent frame as a replacement. Somehow I fear you wouldnt want it, what with Special Pruducts division being shut down 15years ago?
I know someone that had a GT Xizang welded a few years back, but it cracked again.
Riding: Cannondale R800, Thorn Enduro-foco
Hoarding: Orange Prestige, Ozone Oxygen, 92 Klein Rascal
Totally biased, the best bikes in the world are: 90' Raleigh Mirage 91' GT Talera 92 Diamondback Apex 95' Mongoose iboc zeroG 97' Voodoo Erzulie