Hi, currently I'm looking for a canister vacuum by VAX. I have two, maybe three on mind: C86-ID-BE, C86-TO-BE and C86-IA-BE. I need it as a sec-vac for mainly Roomba maintenance (emptying/cleaning bin & filter), but occasionally also vacuuming car interior. Which one is good choice? I had before Samsung SC4320, it was powerful, lihtweight and had not that bad bin capacity, but expelled air wasn't that clean and it was rather loud (maybe due to motor shaft wear). Any tips appreciated!