Not sure if you can put the 5th Wheelers in Caravan market, because they are just like a house inside just a little bit smaller.  Shown here are some dual roller blinds under pelmets.  These replaced the old venetian blinds.  We used a 10% open on the sunscreen roller blinds and total blockout.  Base rails can be held down with normal hold down system.

5th Wheeler blinds 5th Wheeler blinds 5th Wheeler blinds