Ouch indeed ! But I got a pattern one a few years ago and it stretched like knicker elastic. I made it back to base with half the strands of the inner cable broken. So I'm most reluctant to go for another pattern one. However I do like Venhill stuff so if they can make me up a beefy replacement I'll go with them. They don't list a cable for my 1991 TDM.
But if it's £50.00 that's the price for reliability.
Measure up curly and you can order custom sizes from Venhill.