Jeep Doorless Budget Mirror Mount
Thats what I used, couldnt be happier. Its kinda a pain during this time of the year, having to un-bolt and rebolt them every other day, but you could always use the nuts with "ears" so you dont need wrenches. I would just rather use the nuts so nobody walks next to my Jeep and decides they want them more
Edit: By the way, I found everything I needed a pep boys minus the nylon washers. They had all the nuts and bolts and everything, but you had to buy them in a box of like 10-15 nuts etc. instead of just one. Home Debot may be a better solution.