I had a cover made for my tower and I'm really happy with how it turned out. It fits perfectly and it's easy to take on and off.
If anyone else is interested in getting one then the guy who made mine still has the pattern for it and can make more for a pretty decent price.
You will have to have the new 2015 tower with fixed board racks in the upper locations and SP2 (Icon8) tower speakers. It also covers the folded up bimini.
I was quoted as high as $1,200 when I was shopping around, but I paid $400 and it's made out of sunbrella material.
Here is his contact info
Joel (619) 916-8400
http://www.leatherbackcanvas.com