You should be able to go to any Boat Top manufacturer and have them make one that will fit your boat.
I have a 99 LS with the Tower and we had a custom top made that mounts to the cage so that everything can be folded down as a unit. If you can't find a location in TN you can try www.dfwcustomcanvas.com they should be able to make you a top and ship it to you. They are the ones who made mine.
If you want to see a picture of my top go to http://www.geocities.com/hamiltonjct/ select interests>boating.
Hope that help.
Jonathan Hamilton
99 Outback LS - R.A.C. and B.B.
Jonathan Hamilton
'99 Outback LS w/Ballast & Tower