I tried to build an enclosure for R&M. I had problems clearing the up-post/ship mech in the back of the game. There isn't a ton of space once the playfield is down. I'm sure with some rearranging or building a slant in the box, it would be possible, but I'm not about to start moving the cabinet speaker around.
Suggestion that is super easy to do. Turn down the settings on the amp. Then you won't get people complaining about the glass rattling. (on the other hand, you'll get people that will complain that the amp settings were turned down ) Mount the amp so that the knobs are easily accessible and can be seen by the owner so that adjustments can be made without too much issue.