Glad to hear you're well and still into RVing! I've been a holdout for "factory towable" and dissed for it a few times. "You can do this/that, or I tow it anyway" but if there's (a) Warranty or (b) Auto Trans involved I just don't want the problems or even the worry.
It was a little easier for us than many, because we wanted a manual transmission anyway when we shopped for a pickup in 2009.
When you get the new rig, please be sure to post a picture!