Mate, depends what you want to do in the future. If you got your mind on fitting a quick shifter, get some with the linkage arms to the controls. That way you can graft in the push/pull switch.
Generally the sets with the linkages cost more. But you get more positional options, like reverse gear shift. I have used both types, the type that uses your original control levers (Fast By Ferracci), and the ones with the linkages (Sato).
The Fast By Ferracci ones had a fantastic knurled foot peg end that never gave up on me. Unfortunately, these were taken off my bike after a small, shall we say, off
That's ok, they were cheap, and well, being rear sets for the track, they were somewhat expendable.
The Sato's ooze quality (huge thanks Trooper Lou), are tightly toleranced, with well machined linkages
The only down side is the price to replace when they grind themselves into the black top.........
I would do some searching around the Forum, check what the Sponsors have, and try to match on price-form and function, easy