Thank you gents.
I got the cage mounted in the case.
I had to cut a hole in the top of it, I was
maybe a millimeter too tall, and ran into clearance issues with the bottom of the top USB plug:
It's right at home now though:
If you know your Lian Li's, you know I have an issue with the drive bezels now. I'm blocking the holes where the bottom one would clip in. Never fear though. I actually anticipated this; and I have a plan.
Oh, and as for the fan controller. I moved the PSU to the top of the case, and for the time being, it has been rather unceremoniously deposited here: