He doesn’t mean LONG pipes as in those that need a warning sign hanging from them to warn traffic that’s behind them... he just means longer, like the Thiel pipes (more on this in the other post).
As for fairings, personally, I haven’t yet seen a fairing that looks ‘right’ on a 961. I suggest you need to proceed with extreme caution as getting a fairing to look right on a 961 ain’t gonna be easy. The 961 is a very interesting retro / modern styling job. Fitting an actual old style faring won’t look right, fitting modern fairing won’t look right. Triumph did a brilliant job with the Thruxton, but that’s designed to blend in with the Triumph tank etc and I doubt it would look right on a 961.
I had a Paul Smart replica a while back, they didn’t get it right either.
IMHO, a full fairing on a 961 would be a huge mistake as you’d be hiding the bikes best part... that engine.
But even with a top half faring, you’re gonna have to be extremely careful, otherwise you’re gonna spoil want is an extremely nice looking bike you got there.
All only IMHO of course.