Well, I went to the store to get some traps and wow, what a variety they have now! $25 later I walked out with 3 different types. The plastic clamp type, a couple of Ortho walk-in type that is supposed to bait them inside, then slam then keeping them inside. I also got the sticky type, but a lady that was looking for gopher traps, told be to get the sticky ones for rats, as they are larger and the sticky stuff is deeper.
My wife put the sticky ones in our garage, with no luck over night. I put two of the Ortho ones under the front suspension of the MH, one of the clamp type behind the right rear tire, and one on the battery where they had started a nest. I checked them out this morning and the one by the rear dual had been licked clean, as was one of the Orthos. It went inside to the back of it, licked it clean and walked back out. The other Ortho hadn't been touched.
Then I opened the hood and BINGO, the clamp type on the battery nailed one! I am going to place one of the sticky rat ones under the suspension and see it does any good since we seem to have more activity around the MH than the garage. So far, I am not impressed with the most expensive ones, the Ortho's. The clamp type are super easy to dispose of the mouse without having to touch it.
Thanks for all the suggestions!