As you know I've expressed interest in your ammo can tray design.  I'd like to incorporate it with my interior cargo basket that I use for camping. 
 I originally had the basket mounted to the top of the tub.  I believe I posted pics of it in your sliding tray thread.
After obtaining A used refrigerator I was forced to move the basket forward to allow access to the fridge.  This makes it less convenient.  I'm working on a new mounting design for the basket that will help solve the fridge access issue and also allow use of the ammo can trays. 
I'm attaching a picture that shows a std. 50cal can setting on the wheel well.  It is shimmed somewhat level. I show a 4 1/4 inch distance from  the top of the can to the bottom of the bar I plan for the basket mount.  The bar shown is a piece of hardwood used for mock up purpose.
View attachment 381594
From what I can tell, I don't believe your design raises the ammo can that much higher than the wheel well.  Is this  correct?  
Thank you.  I tried to ask this in a private message but was unable to contact you using this method.