I traded a guy a 150L with the ridiculously heavy glass and no center supports. We loaded it out of my house. Unloaded it to his garage, loaded his 150T into my truck, then carried the 150L up a flight of stairs. And I still unloaded the T at my house and setup all within 8 hrs.
If I can do tear down, 5 moves and a setup with 2 people, you should be good with 4.
Don't stress urself too much about it. I'm sure it'll go a lot smoother then u anticipate.