Well, in the end I settled for the Green Stuff World roll (tentacle) maker, cause it was by far the cheapest. The only one I could afford!
My first results sofar:
Just to try it out, I made a few looped cables that are drying now, in various shapes, that I can cut up later and sculpt them into the Drone or various bases of models.. When I'm further along I will probably sculpt and mould these at the scame time so I can loop them fitting to the model. I will need to do that for the cables running to the engines. So yeah, nice one.
If you'd like one too, you can get them off Ebay or from their website, Green Stuff World