Let's step back a minute and think this through. This thread is dropping to the bottom of "The Last 30 Posts..." and you may go forward without learning about how to get a safe tow. I would suggest plenty of research.
apple_1 (Jim) is leading you in the right direction talking about tongue weight. Your trailer's original dry weight was 4715 pounds. You've stripped and modified that -- not the point. Your trailer's listed tongue weight is 570 pounds -- your trailer will not tow safely until you have complied with this spec (or get close at least). Do you know what the Net Carrying Capacity or payload weight should be? That will be the number of pounds you can go over your dry weight. Period.
Go to Airstream's Customer Service/FAQ page
and read the Weight Rating section at the bottom. Understand it backward and forward please!
An airplane carries most of its weight (cargo and fuel) centered over the wing (axle in our case). That also makes your frame happy. Putting a bicycle on the back bumper can lead to frame damage (moment arms etc -- you do the math, or rather I cannot -- but the point is important
). What weight does your studio set-up add back there? Would I try to balance one problem with extra tongue weight? I don't think so.
Do searches on 'frame separation' and maybe take the advice about strengthening. Do a search on 'CAT scale' and figure out how to measure weight distribution on each axle of your tow vehicle, trailer and the hitch.
Just starting points -- This advice is all worth what it cost you (free!), but the repetition of sound points is what this forum is all about.
Best of luck -- stick around, and welcome aboard!