That is a beautiful bus!!!
I have had some issues with RV Reports - not so much campgrounds. Some RV Parks won't accept "our kind" - but any state park or National park will!
I picked up adapters at Camping World (you can get them on Amazon) to go from 50A to 30A (since I have 30 wired for my bus).
Most sites I have found that have 50A also have 30A - but you never know - the adapters weren't much.