If you contact keg connection, they will modify their kits to fit your needs. If you want 15 foot beverage lines, email them and they will modify a kit and quote you a price. One thing to remember, is that since your taps will be so far away from the chest freezer, the beer lines will warm and you will likely have foaming issues. One way to compensate this would be to run the lines in an insulated tube into an insulated tap box. Then you will need a small fan motor in the chest freezer that blows cold air up into the insulated tubes and tap box. Also, another thing to think about: Do you really NEED to control the carbonation in each keg??? That seems like a bit overkill especially since most beers can be carbonated to roughly the same psi without any ill effects. I have a dual body regulator that I bought for the purpose of adjusting pressure on one keg differently, but find that I end up keeping all the pressure the same anyways.