I have many, many years of maintaining both vehicles and things residential - ideal for RV knowledge. I have also owned an RV for 40 years. I am, however, at that age where doing these things is getting tougher.
I applied for a Service Writer position. The service manager took one look at me (I dressed very well, no tats or piercings) and my resume and promptly told me that he was going to collect lots of resumes to evaluate. If you've never heard that before, it's the equivalent of "Don't call me; I'll call you". In other words, he dismissed me out of hand.
I don't know the reason he did this, but he missed out on a golden opportunity. Not only do I completely satisfy all his requirements, I have the personality.
All I can say now is that, I was probably blessed because working for a person like this would have been a nightmare.