I have a 3 blade Catto, James Cowl, camlock "chainsaw" fasteners, and put mine on solo all the time. In fact I have never had anyone help me put it on. The air intake was was designed to make that possible. It isnt easy and you need a blanket to cover the gear leg and the risk of scratching is huge, but it can be done.
I will get a pic of the mod but I put the cowl on and then fir the transition to the FAB and then install a custom aluminum ring on that is held in place with a set screw. I will get a picture of it tomorrow.