Okay, here's one right at your budget. 300 quid plus 10 quid p&p
http://cgi.ebay.co.uk/AWESOME-New-Viking-Windsor-2008-Touring-Bike-RRP-435_W0QQitemZ140288873456QQcmdZViewItemQQptZUK_Bikes_GL?hash=item140288873456&_trksid=p3286.c0.m14&_ trkparms=72%3A1301|66%3A2|65%3A12|39%3A1|240%3A1318
It has Sora stuff on it, which is a decent quality component group for the price.
Ah. I just looked up Crumlin. Northern Ireland. That explains the use of Euros rather than Pounds.
That would make the delivery charge higher on the bike, unless you could drive to Chester to collect it.