Controllers done tbh, I've bought some din connectors and wire so im making you a bit of a loom so matt can have an easier time soldering it all together. I'm happy with it, it'l not be long since Charles hits the year mark with his, so they're doing allright.
They do take quite a lot of work to build however, so that's a bit of a pain.
I've made a little page about it on my website
http://www.DieselPowered.co.uk
(under products)