What carburetors are on your bike? VM26? I get most of my carb stuff at Z1Enterprises.com. They have the gaskets listed for your bike & they probably have all of the o-rings --- that would make it easy.
From the diagrams at Kawasaki.com, the pilot jet does not appear to have an o-ring --- maybe you mean the pilot adjusting screws? The main jet & pilot adj screw o-rings are static, so close enough should work --- I bet the HF kit will suffice, unless the p. adj o-rings are tiny. The kit has the main jet o-rings. One o-ring the kit doesn't match is the starter plunger o-ring -- those have a thin cross-section compared to the diameter --- Z1Ent probably has them or the dealer as they are an Active part.
Note: Before ordering gaskets, I would look at the ones on the bike & compare them to photos provided by whatever seller. Just make sure they have the same shape.
