Have you tried costing the time it takes you to strip it (at your 'usual hourly rate')?I have a drill powered one for stripping all my waste and pulled cable from re-wires etc. .... You'll get 3 times as much weighing it in as bright copper than you do as "VIR"/unstripped.
Kind Regards, John.
That's what we have cable monkeys (apprentices/"assistants for, surely?