We have a 28BHBE also, so when I have a minute, I will measure the space and look around for a bin. If I find something, I will let you know. In the class c we had before, we used a couple of smaller bins, but you still had to reach in for the back one. I know they have long bins, problem may be the width.
2006 Ford F350 SD Powerstroke Diesel Crew Cab
2014 Jayco Jay Flight 28BHBE
Reese Dual Cam