Welcome to a fun exciting lifestyle.
The one bit of advice I have: How you are currently imagining your RV usage is likely far from how you will actually use it.
Your first TT will start your learning curve. With it you will find out just what you like and dislike. And your likes will likely evolve over time. Just about everyone has different ideas on the perfect TT, as we all have different needs. So nobody can tell YOU what is the best one for YOU.
So I recommend starting out with a used TT. Later you can buy the new one when you have a better idea of what is really important to you.
I am on my third TT. Each one has been a better fit for us than the previous one.
I think there are quite a few people on this forum with similar experiences.