If you look at the Bailey caravan jack and bracket, the bracket is just a piece of flat bar bolted to the chassis with a welded box on the bottom to sit on the top of the jack, the Alko bracket is a right angle that is also bolted to the chassis, but the Alko jack head sits inside the bottom of the Alko bracket, actually not much welding in the way I will do it, a piece of flat bar, drilling the holes not a problem, my bracket will sit inside my jack heads, infact the opposite way round that Bailey do it,