The challenge with that is that the builder would need to have a plug to replace the sensor. There is no good reason to do that since the sensor functions as a plug.
I saw you inquiring on some FB groupstoday as well. The cafe groups are the best place to ask, and I'd specifically ask if anyone will sell you their used one. People are gonna assume you are looking for one from some parts supplier.
Finding the cable from a builder should be easier.