2Questions: diff Amp services & Where do I get a sway bar?

Your TC probably does have a 30 amp plug but that doesn't mean you can't plug it into a 15 amp home circuit either. I have a 30 to 15 amp adapter that I use all the time (and I did buy it at WalMart). You just won't be able to run all the lights, microwave, air conditioner, etc. at the same time off the typical home circuit when it's plugged in that way. Normally when I'm at home and packing up to go, I have the TC plugged into a 15 amp circuit from the garage just to keep anything from draining the batteries while home. There are different plug configurations for a variety of different amps.

You can buy the adapters at Walmart for different amp service. If you go down you just may not be able to operate everything.

etrailer.com sells anti sway bars. Manufacturer is Roadmaster. However you may want to get info from RVers on here that have TCs. They will be able to help more in what you will actually need for your TC.

I just installed a big wig on my dually and took a 400 mile trip through some winding mountain roads. I was very pleased.
20/30 means they offer two outlets, one rated 20 amps the other 30 amps, in what is known as the "tombstone" or electrical box. Same goes with 30/50. Two outlets, one rated 30 amps and the other rated 50.