Here is a $60 load cell. If you have a G29/G920, this drops right in after you clip the ears off. Installs like ricmotech but no circuit board is needed.
https://www.amazon.c...0?ie=UTF8&psc=1
Measure load cell for wire then drill hole like ricmotech install but hole is not at 1". Put rubber block from brake in sideways so it is thinner. No spring. Switch springs around to make clutch and throttle stiffer. Done.
Electrically, it will work in a G25/G27 but the "spring perch" in the brake piston is a little different.