and the "parts" are readily obtained at your nearest auto parts outlet (Sshucks, Napa etc.) or the likes of Home Depot, etc.
Shouldn't be more than a coupla bux to weld it together. (I chose to weld it together so as not to LOOSE parts/pieces in the set up or tear down of camp)
It IS important however to make sure the welder gets things as perfectly aligned as he can to avoid "wobble" when raising or lowering the jacks.
NOTE: the welding process WILL cause the chrome to be eaten away so IF you are concerned about possible oxidization, you can coat the piece with a coat of rattle can paint
of your choice or quality. Myself, ....I've have the device powder coated!!