Help with Ford Escort Immobiliser

[PFA]

Hi I have a worn out key to this external immobiliser fitted to a ford escort. You can see a picture of this at <A href=&quot;http://www.s-v-c.co.uk/immob.jpg&quot;>http://www .s-v-c.co.uk/immob.jpg</A> The problem is that my existing key is so worn out that it does not work. Two questions&gt;

<UL>
<LI>Will re-painting the key circuit using conductive paint work?</LI>
<LI>Given the fact I dont know anything about immobilisers - will hardwiring the device work?</LI></UL>

Many thanks in advance...