I personally didn't find it hard to install, it just takes a little longer because everything is literally compiled from source. There is also a fair bit of reading, and less hand holding, which I liked.
We will already know the hardware exactly, so we could simply provide an installation image, having already compiled the base system. then the user simply burns it to disk or usb and installs as usual. Because the hardware will be mostly standardized, it would be easy to to this.
However we could also just pre-install? Of course, this gets into the question of how the end user is going to acquire the actual machine, and if it will come with any storage disks, or if the user will need to supply their own hard disk.
I am also actively following
http://bedrocklinux.org/ as it aims to let all the flavors play nice together.
I believe my line of thought is going in the direction of "get the hardware working and OS running" - I hope that helps.
Please be annoying! Sometimes we all need that.