How about building a shield from large diameter PVC pipe to protect some of the sensitive components? It's not likely that forklift is going to get anywhere near highway speed to create a lot of splash, even in wet weather.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!