Very nice '97 Mount Vision with a MK1 swing arm is a rare thing. The fact it's tyres and saddle away from catalogue spec' too...very nice.
As said, swing arms crack at the tubular to box section junction.
I have an original warranty card somewhere, if you want to try your luck?
Yeah about £150-200
Quick edit
Should have a silver Dia-tec headset and the pedals have been changed!