Torn wiper seal, 2017 reflection 297 RSTS

[Hank Long]

Set my new reflection 297 up at seasonal campground only to find on first use it had a torn wiper seal on the vertical side of large LR slide. Warranty provided new seal arrangement but dealer won't travel to site for repair. Since I have no easy way to deliver unit to dealer, I am going to make repair myself. the new seal includes both the inside and outside "D" seals and both wiper seals on an "H" mount. GD tells me it can be done without removing slide but it can be difficult to remove entire seal arrangement and replace. Has anyone completed this type of seal replacement? Can anyone give me any advice? I've included some pics.

1. cross section view of new seal arrangement
2. torn seal