I have a standard kegerator that snugly fits two stainless 1/6 kegs. Last week I went and bought two kegs at a local brewery and they gave me the new Petainer kegs which I think is a great idea, however ... they do not fit. They are about .5-.75" too big (total). Does anyone have any suggestions on this? Will removing (or trimming down) the plastic top work, along with removing the plastic bottom? Has anyone McGuyvered two of these into a kegerator?