Registered Forum User
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Posts: 5,018
Join Date: Jun 2003
Location: Chelmsford, Essex
Mood: the rain in spain falls mainly on me!
there are plenty of people with a better idea than me but i think a well sorted 583, which yours sounds like would get 2k-2.5? a well set up 620 ready to race can be had for 3.5-4 so 1.5k to trade up. these are very rough figs and can be reduced by scouting around a bit or doing some stuff yourself.
anyone else feel free to come up with a more accurate valuation.