Was chatting to my mate today whos Vit were building at the minute,regarding missing links and he said to stay away from Rhino Rays as they are poor quality and the swivel seizes after a bit of harsh use.
Apparently the best ones are made by a guy called BillJohn
http://www.billjohn.com/ as these ont have the problem the uk ones do.

He also said Calmini
http://calmini.com/ do a good version but if you were to have a set to measure up you could fab some up no problem.
Ive just finished wiring up his front and rear winchs's roof lights,fog lights rear work lights etc to all work off a centre console with a bank of switches.Also installed some rocker switches so he can operate the winch from the console inside the cab as well as the wired remote and the wireless remote.
I will get some pics when i go next and it's all back together.He is on his way to Wales as we speak to see Dave at Bits4Vits to collect a front and rear full locker and a couple of axles then he's dumping them at mine for me to fit.