Retrofit heating handles for R80GS

Hi Guys, unfortunately, the cable on my 80GS is directly torn off. Age weakness probably That’s why I need completely new or? Since I didn’t buy or install something like that myself, I don’t know what’s right for me. That’s why I’m going to ask you about it. The control should only fit the look of the GS and should also heat well. Like here the quite hidden control system https://www.louis.de/…/10032697 as an example. Do they know one, they are good? Or can you give me other I mean the price is really good for the Koso.