Maybe I am just old school or just old farmboy but I cannot see the reasoning to go buy a torque wrench just for that. If you keep them very snug and check them regularly, and assuming you are not a very, very large person that would overtighten them, thats a lot of torque and I don't think I could, you will be alright, safe, and have a little money left over to spend on the 'bota instead of a torque wrench.