I scored a brand new single tap Insignia kegerator on Monday for $150. CO2 bottle, whole kit. It's the 5.4 cubic feet model and has enough room for two and maybe three corny kegs. The off-the-shelf two and three tap towers are 3 inch diameter towers and the one on my new toy is 2.5 inch diameter. Does anyone have any experience with adding one or two taps to the 2.5 inch tower? Thanks.