We were originally going to buy a 24L Melbourne, but then saw the floorplan on the 24B as the same, so we went this way. I liked the paint job on the Melbourne but didn't want the V6 MB engine, but wanted the V10 Ford engine. Otherwise, everything else inside is the same between the two.
I didn't like the exterior on the Redhawk. But saving $20K to get the same floorplan, I decided to do the custom vinyl wrap on my Redhawk instead. So, we got the rig we wanted, with a custom exterior, for a lot less than the Melbourne.
Also, I believe the 24B has a bigger A/C unit and has a higher towing capacity than the Melbourne 24L too.