I bought my last camper over the internet from Victoria. The seller had lots of good photos and I had done my research. I paid a minimal deposit and we met up half way to exchange a cmaper for the balance. It was terrific.
So, ask for lots of photos, all angles. You might even ask if any other local swaggers would mind running their eye over it for you, it's not uncommon for members to help others.
If you get a good report back, you can line up transport, or take a chance and fly up. For less than $500 you can do your own final inspection.