There was one posted here earlier I believe. The wife and I have different items to check so each of use deals with seperate items. She gets the interior and I deal with the truck and exterior as well as hitching then we both each double check the outside and hitch.
Try using the search function here on the board in this forum. I think you might be able to find what was posted earlier. If you do, look it over and then add / delete items to fit your rig combination.
(edit) I tried a very brief search using the term checklist and didn't get what you are looking for. Separating the word into 2 got hundreds of hits due to the word "check". An MS checklist may not be here but hopefully some one has one they can share with you.
FWIW, it's kind of scary at first, but after a few weeks, it gets into a routine. It's a lifestyle that rewards taking it easy.