Looks good I like that.
I've been meaning to make some cup holders for my 49 using exhaust pipe, I made one for my lawnmower that way so I know it works. I think it's the 2.5" pipe that takes a water bottle or a pop can nicely. Can always place some foam around the inside if it's too loose, but I haven't found that.
I'd also though of frenching them into the doors, even in the access panel for the lower hinge plate - but ... too many other projects on the go and I've not gotten to that yet.
