If you are willing to put in a little work Kiitplanes recently posted an article on a do-it-yourself aircraft Jack set for RVs. If you're a kid Kitpanes subscriber you can just go on their website and get the article. If you're not, private message me with your email address and I'll send the article to you. I strongly recommend subscribing to Kitplanes for anyone on this list. It's well worth the money.
Charlie