If you can live without the roof rack and ladder, I advise to continue doing so.
When we special ordered our rig new in 2007, I required the roof rack and ladder placed inside the rig in pieces, not installed on the motor home. I didn't want them, but wanted the option to install them later if I changed my mind. I am so glad I did that. Eight years stored in our basement, I am now thinking it's time to sell them.
Here is our rig without the rear ladder and roof rack.

Here is another rig, same brand (different floor plan) as ours with the ladder (folded up to access the storage compartment) and roof rack.
