C5 serial number

[jk]

My c5 is missing its serial number plate.
I am going to use C5martin's Serial Number Plate (http://c5alive.co.uk/forum/index.php?topic=261.msg1844#msg1844) but I would like to know what date range my c5 may have been produced so I can use an accurate year/month code. It has brown fingers on the motor and a grey boot. Does anyone know when the brown fingers were replaced with white ones? As far as i can tell from the sinclairc5 site, their directory shows grey boots were fitted to from V1000412 - V1000503.
Thanks, jason

[jk]

I've decided to use V100050101874, which has been derived from having a grey boot (501), and the original motor S/N (01874)
That number is not listed in the c5 directory on the sinclairc5 site as yet.
Please tell me is this is your Serial number.
Jason

[Karl]

If you're worried about inadvertently copying somebody elses chassis number you could always change one of the group of zeros to an x or something. Guarantees your number will be unique