Trish, congratulations on your purchase of an "older" Pod. Ours is also a 2009, but a 172. We have the same idea of stripping out excess weight and stuff that we don't use. Ours didn't come with a microwave, so I didn't have to get rid of it. We eliminated the heavy table top with a child's folding table from Costco (Lifetime brand) and I mounted it on a pedestal so it's easy to remove if we want a couch like sitting area. We added a fold down cutting board on the sink side of the galley which would be even easier for you to do in the 173. It substantially increases the counter space area with less than 4 pounds of additional weight. The fold down hinges allow it to be stowed completely out of the way.
It's a good thing you didn't try US 95 on your way home. We drove that distance from Dayton, NV (just east of Carson City) to Sedona, AZ in one day [ufff!, too far] and there are some climbs that would have been far more challenging than the little bump through Tehachapi. You made a very wise decision using highway 99; much flatter and much less costly gas.
As for a weight distribution hitch, unless you plan on getting a pretty heavy duty pickup, it would be a very wise investment. There are several good ones on the market and they make driving with the trailer much less fatiguing, especially when it's blowing snot (a sailing term) and you're driving perpendicular to the wind direction. We use a Fastway E-2, but there are other good ones on the market too. Just get some help setting it up so it is properly positioned for your tow vehicle and the bolts are torqued to the correct force.
As for a TV, you should, as was discussed in your earlier thread, probably get something a little sturdier than your Outback. Quite frankly, you'll cut the service life of the Outback considerably trying to tow the trailer and will struggle with the climbs in the Sierras. There are a lot of used pickups and SUV's on the market that you can get for a reasonable price. We did this with our Dakota and it has been ideal for towing our Pod.
Best of luck to you. Maybe we'll run into one another in a Sierra campground. We're the all white Pod, with all the decals removed.