Bike looks pretty good for £150, much better than a new one would at that price, does it fit would be the key question, if not, walk away.

For the bike it's self, the forks are the biggest issue, from Manitou's not so great period (they make great forks again now) they will either work, or not, and forget spares, as they just don't exist from that long ago, replacements will cost the same as the bike (£150-200). No disc mounts either, rim brakes are fine, but if riding with others, you will have longer stopping distances / not be able to stop as quick as others with discs.