Lunchtime progress ..... I have isolated starter and alternator by removing main +ve connection at battery and using MMeter to connect from battery +ve to main fusebox input. (cable disconnected). I believe this means battery is only connected to car systems. Still reads 4.7 A at connection dropping to 2.6A after approx 2 mins. I didn't have time to wait longer but I recall from previous experience that I could see 'milliamps' after 2 minutes before this.
For cb750chris, Many thanks for the tables. I will try to use them later to at least check the 6 'square' fuses I can't extract. I know they are not standard spades but i'm looking for Amps not milli's.
For 'Blackrose'.... looks a useful tool and will probably get one anyway but doesn't help with the 'mini spades' in the cabin fusebox ! Thanks anyway.