Cactus V6II trigger/receivers

I have a couple of these in excellent condition, one for mounting on the camera hotshoe and the other for the flash. They are supposed to be compatible with different camera and flash makes although mine are stuck on Pentax as the camera mode whatever different body I try. They are lightweight and reliable wireless remote flash activators with four independently set channels and full flash compatibility including TTL. With a cable attachment from the one on camera they can also be used as a wireless trigger.

Are they of interest to anyone here? I am open to fair offers and can post photos a bit later.

Here are the photos. I also have the Cactus shutter cable so the two Cactuses can be used as a wireless trigger.