Hi Shannon
Not sure why the link for "stands" on their site is disabled:
Flash Dryer Accessories
But FYI, their stand for the BF-1 and BF-2 is $209
(your 16x16 is a BF-1)
They charge an extra $31 for casters.
They use a unique leveling system that's designed to keep the flash-head level with the pallet, but I'm sure that a creative DIY'er could fab something similar.
I'm just not certain that it would cost less after time and materials for custom rigging.
Happy trails.