1. We use special micro fiber bath towels. Take a bit of getting used to but work great and dry in minutes after use. We use a small fold-able laundry dryer outside.
2. Nothing stopping you, this is just a matter of preference.
3. Again, a matter of preference. We bought a very good queen short mattress at Wal-Mart.com and we are very happy with it. We consider a topper good, but temporary.
4. This is an issue that spans across all makes and brands of RVs. It is what it its. It doesn't seem to bother us anymore.
5.We use a Weight Distribution Hitch like many others. Your particular combination dictates determines requirements, however, it usually always improves safety, control, and ride.
Relax...it takes a while to get things the way you want them. It's all part of the fun. Enjoy!