Purchased a wrecked Prius, accident damage was wheels, rocker, and maybe suspension. Lo and behold, the plastic parts on the bottom of the coolant heat tank are broken. Noticed this after checking the CEL, finding P1116. Went to look to see where sensor was located and noticed where I believe the drain cock used to be is now broken off. The tank does have a small dent, but I would like to try to replace the plastic piece first, then sensor, before buying another tank. Unfortunately, online Toyota parts sites I've visited don't list individual parts on the tank. Does anyone know if the parts are available individually, or am I screwed?