Due to losing a vehicle (I'm helping out a family member), I needed to buy a new vehicle - so I ended up getting my new TV a year before I was planning to get it.
I've now got a Chevy 2500HD diesel.
I'm pretty sure this should solve all my concerns about getting my 2619 TM up any mountain! It's also got the built-in brake controller, properly tied into the brake system, which should solve my brake controller woes (I was using a time delay controller - nasty!).