I have 4 pieces of aluminum 12" box truss (10') that I would like to use totem with roboscan 918's mounted at the top of each. I'm having 3' steel plates drilled out. What type of bolts would I use for the floor plates? (Grade 8 bolts). I would also be adding additional steel plates for weight. Is there any thoughts as to mounting 918's (89lbs) to the truss might be a bad idea. Thanks in advance.