Bruce, I haven't seen the hose reel, other than a picture, does the hose disconnect from the reel assy. If it does....is it possible to remove the hose, attach a 1 ft section of hose, then the regulator and original hose and get it rolled back up?
Maybe I'm not always lucky and hate giving things away easily.....so I'm a lock it up kind of guy.
Here is what I've done for my water filter and regulator. Mine unit didn't come with a whole house filter and where my interior hoses are routed, would be hard to put inside.
It hangs of the front ram for the entertainment slide and is lockable. A 25 ft hose goes between the hookup and regulator and 10 ft to the units connection. Works good so far.