Diesel will develop fungus or algae if left standing unless the fuel was treated - and that seems unlikely given your inquiry. Moisture isn't so much the issue where you are. I'd probably give it a try - the current filters will catch any problem or plug up and prevent you starting it. Also, on a motor home, draining the fuel isn't so hard.
One other thought, just get a sample of the fuel and give it the sniff test. Old fungus diesel smells bad. Not like fresh fuel.

__________________
DS
2010 CL550 - Heaven help me but it's beautiful
87 300D a labor of love
11 GLK 350 So far, so good
08 E350 4matic, Love it.
99 E320 too rusted, sold
87 260E Donated to Newgate School
www.Newgateschool.org - check it out.
12 Ford Escape, sold, forgotten
87 300D, sold, what a mistake
06 Passat 2.0T, PITA, sold

Las Vegas NV