I have a super clean 2004 TS1000 that I carry on my 2004.5 3500 Dodge 4x4. The canvas is in good shape but the windows, insect screens and especially zippers are showing their age. Northstar has a new Subzero fabric available that includes all the new tech with windows and zippers, plus the advantage of some weather insulating. Not to give details but I'm not impressed with the local RV dealer that sells and supposedly repairs Northstar so I'm thinking about tackling the job myself. Anyone out there have any experience with this project please chime in. thanks.