Hi all - looking to get my brothers Cannondale mtb back to original & need a little help with the year & model ? on the underside of the seat stay are the ' dot numbers ' 20041789199 - we think its a m700 but as all the paint has been removed its not clear . has standard vertical dropouts ( not beast of the east extra horizontal type ) & the rear cable hanger has a adjuster . Any help on year / model or even better colour would be great .thanks