has any one used or built a walk behind leaf vac system? I do mostly residential mowing, but have 5 high end properties that want me there every week to remove leaves oct-nov. right now I use my 36in walkbehind with a grass gobbler because it wont mount to my 52in snapper pro or my 60in turf tracer. so I know I have seen some guys run around with a trash can looking system mounted on top of the deck, so I was wondering if anyone has had any luck building one or bought one. any pictures or suggestions would be appreciated. I'm tired of emptying my grass gobbler and not to mention only using a 36in deck. not fun!