Can you link me to that Vumad? Where Would the lever be at if I did it
I dont know where exactly you can buy a protec trim system these days. They may be discontinued. All it was really was a custom cable that allowed you to connect to a single side of the qsts mechanism inside the hull and traded out the qsts grip for a lever. It also had a spring for the side of the qsts you were not using.
You can make one, you just may need to get a little fancy connecting the cable to the mechanism. You need a left handed bike lever and a stainless brake cable similar in qualiy to the cables you remove the the qsts. One end of the cable screws right into the bike lever, so you just need tk fabricate something to hold it to the qsts mechanism inside the hull.
I will provide the disclaimer that i have not actually done this job.i did try to find someone to modify the end of the stock cable to work for this job but could not find anyone. I did find a site online that would make any cable you like custom, but unfortantely i dont remember the web address.
Plenty of people have made good suggestions here so it is aorth investigating what they have said if the protect kit is not available and ypu dont want to hunt for a custlm cable.