Since we do a lot of traveling with our E19SB we use a fair amount of propane. For that reason I replaced the 20# propane bottle with a 30# taller style bottle. Not all stores carry this type bottle. It is the same diameter as the 20# but is taller. Because of the additional height of the bottle I had to have a short extension hose made up for the propane supplyline into the camper. The short extension cost about $22. to have made.
Another mod was adding a 2″ memory form pad on the bed. The bed was pretty firm and uncomfortable before adding this. I picked this up at Sams Club for about $100.
These mods were made before our 4,400 mile trip to the East coast and they both worked great.
Hope this may be of help to others.
Ken & Marilyn