That one on Tim's bike looks like a reworked Vetter fairing.
Yah, TIm made his custom form another fairing, not sure which one.
...As far as "not square", Memphis Shades is the only one I've seen and best of all, it's the quickest of the quick release systems you can find. Pretty well made too.
It's what Fireman has on his:
, Fireman's big front wheel makes it look deceptively small.