I have two levels going on... stuff I can only do at or on the Airstream in storage, and stuff I can pull off and do at home... this is the latter, and I like these, cos I can work on them for 10 mins or 2 hours, whatever I have time for.
I did the bed on my old Chevy Pickup about 2 years ago with the Herculiner kit, and was pretty impressed with how easy it was.
I still think it was a bit "thin" and would have liked to add another coat, but it has really stood up to a lot of abuse, and has only broken thru when I dragged/pushed my cherry picker in and out, and even then only slightly.
It should handle this "light duty" job with ease, and the textured finish with help stuff grip and not slide too much.
I recently picked up a barely used 110V Snap-On 140A Mig welder, and I also have the Mig Spool Gun for Mig welding Aluminum, and the DC Tig for steel(DC can't do Aluminum) attachment as well. To buy this setup new would have been $5k plus, and I got it for a song! It is HUGE, because it has a big fan and heat sinks(100% duty cycle).
Sounds like a great "Practice Project" for the Mig and Tig!
Here she is: