Cheap & easy Power Drums? '66 Signet

For that price I'm just gonna buy it, and rely on return policy if it's not as direct a fit as stated. Perhaps there are brackets for multiple fitments included. Since I'm not a concours guy by any means, if it fits and works who the hell cars if it's not OEM? haha.... I'll post updates as necessary!

Of course anyone else chiming in with more info, thanks in advance!