I'll probably have to give it a go if for no other reason than filling in the blanks in my skill set (plus I could do with the cables in the next few weeks rather than the autumn). It'll take me a while to assemble all the bits I need but I'll report back on where the voyage of discovery takes me. If nothing else trying to make them myself will distract me for long enough that Venhill may be back to normal by the time I give up.
So, for bits we've got Ebay, Venhill and Carrot. Anyone else I don't know about worth having a look at?