Got this guy:
https://www.amazon.com/Viair-00088-8...keywords=viair
And this guy:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
ON order should be here by the weekend. Will report progress. Looks like valve stem extenders recommend metal valve stems, looks like I have rubber ones, so I'll probably just have to tough it out with taking the simulator off for now. When I get the tires replaced (probably next year) I'll have the place set it up right.
Edit: Luckily only the left side does not have a valve extender so I am guessing they must have gotten a flat or changed the tire at some point. So it will only be half a pain in the ass to fill it up. Hooking up to the battery seems like a pain in the ass, but the upside is that it will work anywhere I go as long as I can turn on the RV.