Before you TQ the bolt, I would set the clutch on the crank and let it set. This will help both temps match up. It makes a differnence and then tq to 80 ft lbs, spin the track, brake a couple times and retorque.
Some people use the wooden handle of a hammer and wedge it in the clutch. You can use a motorcycle strap and wrap it around the clutch and then attach the other end to the sled somewhere. This is like using a strap wrench. I have used this method multiple times, it works best if you can wrap some rubber or something similar to keep the strap from slipping. I finally bought the SLP tool and it works great. Good luck.