I’m actually playing around with the idea of sending you a 360 wireless controller via [amazon.co.uk] (https://www.amazon.co.uk/Official-Xbox-Wireless-Controller-Windows/dp/B004JU0JSA/). 
If you’d like to, I’d be happy to contribute to the project in this way. Please PM me the address to which to ship (the address given here also turns up on an internet fraud site, so I’d like to play it safe).
As for kernel building: Does this post by DBMandrake contain everything needed, or is there anything else I need to prepare, know, read besides the development entries in the wiki?