UPDATE
I've just sent the following peoples details to Evgeny
noodle1066
mhon72
Crumpet
spitz
jiWilson
daithevet
REDSHOE1
Pierremcalpine x 2
I-S
If we can get 20+ orders then he will send them for free, which would mean a cost of 45 euro's plus postage from me to you (There has been a slight increase in cost due to a change in supplier of MCU.). He's emailed me the size and weight so I can look into this cost.
He's also looking at including a warning buzzer into the design if people are interested. Estimate is it would add 10 Euros to the initial cost.