The factory F136 flywheel is $300 brand new in the Ferrari box, or $100 to resurface it. I've done both. I always recommend replacing that due to its low cost. If anyone charges $800, then that is pure robbery. I know that parts markup is part of business but not to that extent.Flywheel is expensive ($800) and doesn't generally need to be replaced unless burnt from too much low-speed creeping.
Throw-out bearing is hit-or-miss, depends on mileage. Most are good for at least two clutch plates before they start to leak. Sensor is also hit or miss but if you leave it in and it goes bad later you just have to dismantle the whole clutch again (ask me how I know).
While you have that off, you may want to replace the spigot as well.
As for the F1 sensor, they can fail out of the box or they can last forever. They typically don't, but the point is there is no way to predict failure.