I usually try and stay out of these threads to keep things non commercial. However in this case I want to point out that my conversion kit takes care of all these issues on a U.S. spec car and buckets are easily sourced for cars buit for other markets.
The wiring harness and relays can handle 4 upgraded headlights (two are included). 100w high beams (a no cost upgrade) are no problem and are in use on my daily driver. It's well designed so that a failure of any one component can't leave you stranded at night without any headlights. You don't need to cut up the factory wiring to install it so when these things go up in value like an 8C
you will be able to return it to stock condition.
I will agree the kit isn't cheap, but it takes me a lot of time to make the wiring harness.
Greg,
www.hiperformancestore.com
Sorry, I didn't realise how big that picture is.