I'd recommend making your own immobiliser with a cheap IOT-Relay kit, I've got a few here. These little boards can be wifi clients or access points. A day's coding on a pair of them, a battery and a keybox would make an easy security device.! There's no way of stopping someone getting round it by sticking 12V on the Lambda Heater without customising the factory loom-extension as far as I know anyway.!
The last time I closed the bonnet on the car I was/am dejected. It was running fine.... then I refilled it with antifreeze and it seemed OK for 20 minutes, then it just started backfiring and wouldn't start again no matter what I did with the keyswitch wiring.
I am worried about how much water came out the exhaust after I'd left it for a month..! I'm wondering about water in the petrol, or worse a rotten head leaking.! (cheers for the nod Paul)
When I get back I'll stick a camera down each bore and look for moisture and probably rust. I imagine the exhaust will be wet and corroded let alone the cat.
Still, might be better in the spring.! For now, it looks nice, they are the perfect shape for a car!
:-) Cheers
NEAL