As the studding will bend a bit over that length and no proper end
anchors, I'll add a brace to a subverted chassis fixing screw. 90 degree
twist to that piece of hardware shop bracing strip , one hole opened out
to pass the studding to near midway of the stud length and another pair
of nuts either side. I could then increase the length of the studding
rod a bit, so it will bow outward, and stay in position, to increase the
freeboard to the bottles.