"If it's 6 then you have to get the 6 spoke torque thrusts to my understanding but I'd prefer the 5"
This should be a easy question for any tire shop that sells rims, just stop by one and ask. They will have the appropriate material to look up this information.
It makes since if there is 6 lugs that it would be a 6 spoke wheel(lug, then spoke), and a 5 lug wheel would be 5 spokes, a lug on each side of the spokes for each wheel.