I think you are nuts.
Depending I guess on the brake system, hydraulic disc brakes are about 99% lower maintenance and more reliable than mechanical. Besides maybe the stem top cap, my Hayes hydraulic disc brakes that I have been running for the past 5+ years and 15000+ offroad miles are far and away the most reliable, low maintenance and trouble-free part on my bike. I replace pads about annually and that is IT.
There's no dismantling necessary to remove it. You don't break open the hydraulic lines. You just remove the zip ties, remove the calipers, remove the levers from the bar, and take the whole thing off as a system.
Then feel free to send it to me, I'll swap you straight up for your "upgrade". You couldn't pay me to have to deal with the hassle of brake cables ever again. I am so stoked that my mountain bike has NO CABLES of any kind on it. Oh, the joy. offroad bicycles and cables are not a good mix.