Yeah, so exactly what Matt Colie said!
And nice looking rig!
It's not as intimidating as it sounds. The chassis is basically just a 12 year old HD pickup truck. Well, heavier axles though. Totally easy and pretty economical to work on.
Treat it like a used car you'd buy, depending on mileage. Tune up, belt, fluids changed, check out the brakes and rubber etc.
The house part is the same as your Travel trailer. Nothing new to you.
And whomever stated it needs a front end alignment regardless....that doesn't make sense. Either it's in good alignment or it's not. That's not like a periodic maintenance type thing.