I currently have the NY Norton rear sets.
I used to have a set of the Clubman type, of unknown manufacture for many years. I also recently had a set of Don Pender Dunstall repops that I just moved on.
The NYN ones are a very nice kit, excellent build quality. The brake pedal leverage is very good, and the shifting is very smooth.
I do have a couple of small niggles with them.
1 - they use a mix of metric and unified threads. I wish they would have just stuck with unified threads to make things simpler.
2 - you must use a T160 style RGM kicker, a stock kick start will not work. So you need to factor that into costs.
3 - it is a design primarily adapted for race bikes, and there are a couple different mounting plate profiles that Kenny offers.
The older (standard?) one has a foot peg position that is a bit lower and foward, about an inch or so. I find it more comfortable with my long legs.
But, I found the toe position cramped behind the large knuckle of the RGM kicker so that you are shifting on the end of the boot. No kicker on your race bike? No problem.
Also, running peashooters I found my heel often rested on the muffler and left a bit of melted skiddie. Running a Maney, Brooking 850 2EX1 or S-type exhaust? No problem.
Kenny now offers a plate that moves your foot peg back and up an inch or so. Fixes the above issues. I dont find it as comfortable as the originals, the Clubman or Dunstall, but my legs are very long - 36" inseam. Many may not have this issue.
For a long trip, I would likely look at putting the older plates back on and living with the toe crowding, since I run a 2EX1. Or, making a custom plate like Nigel.