thanks everyone. i've emailed madison to see if they still list the removal tool. i contacted one friend who owns a bike shop in glasgow and he's never seen such a tool in all his years in the business! weird how there never seems to have been a need for anyone to replace/ service a DA 8 speed body! must be good stuff . .
anyway, this is the offending article - shimano tool part no. TL-FH10
1989 TvT Carbon Fibre, Oakley Factory Pilots & painkillers . ..
..what else could you possibly need?!!