Welcome to NuRVers! And congrats on becoming officially nomadic! So many adventures ahead of you!
Sorry to hear about the truck hassles. We have found to take the breakdowns in stride. Its going to happen - it is just a matter of "when". We recently went through a bit of downtime because of a repair. Took them over three months to finish everything! Hopefully we won't be down that long again anytime soon.
The "where to go" question is always a tough one. When first starting out, especially, it is hard to resist the temptation of going everywhere - quickly. The important thing to remember is that you have time. Time to explore, time to get to know an area, time to move to the next. Don't get too caught up on seeing "everything". I think that contributes to a lot of Nu fulltimer's stress. Take your time. Move around at a pace you are comfortable with. Everything else will fall into place :)
We still haven't made our winter plans yet, but it will consist of heading south - as usual. It is easy to meet up with other NuRVers during the cold months, because many of us are on the bottom part of the US. Keep an eye on this site, and you will start to see talk of people meeting up. Last year we met up with a bunch of people in Quartzsite, Arizona. It was great hanging out with other fun people :)
Happy travels to you, and hope to meet up with you down the road!!
--kev