It was a wrap that a teammate designed, and we paid someone to put onto the RV. The removal process was all on us though. It took a couple hours and left quite a few blisters on our hands from pulling it off by hand. Definitely worth it though!
Article seems to state they got a vehicle wrap for it. Probably not part of the 4000$ rental, but can't imagine it being more than maybe 1000$ to "print"? Random large-ish dollar amount I came up with on the fly.
Thinking that's low. A car is $2500+ to wrap. Lots more area on that RV. And it's not a DIY job for sure.
An RV is mostly flat. That will save a lot of time ($$).