jayco swan Air Con

Hi Lesley, remember portable A/C must have a duct to outside the van.
As a starter Good Guys portable A/C try this link or just Google portable A/C

Cheers
Jon

Also have you looked up any reviews about them I was searching early this yr for my daughter we never ended up getting one but I found out a bit about them. Noise seams to be one of the biggest complaints see if they list their decibel rating and I think some may come with duct adaptor for windows or they can be purchased separately. You should be able to modify one of your windows or fly screen to suit the duct. This in one of the sites I use.https://www.productreview.com.au/c/portable-air-conditioners.html