Does a current Baron of Chybisa "control" that area? Or are they focused on more populated areas? In effect, would going directly to the king be the best approach, or through a baron? If the latter, what does Gerolt know about the baron in question?
Given my total lack of skill at making up characters, I'm pretty much open to however you want to handle creating the contacts. In theory, the project seems to be a "win" for all involved. Gerolt would sound his contacts out on whether or not they wanted to be a part of the project. He doesn't have the money to pay, but maybe the farmer's fields are worn out or washed out, and he wants a new place for his growing family? Maybe the noble, male or female, can see an advantage to helping the project move forward? One never knows, without asking.

In a way, Gerolt's effective status might increase for a while, given that he's helping the project move forward. He's not trying to own anything, though of course won't tell the king "no" if told to go run the place. Because Gerolt's contacts are local, and he's a noble, it should hopefully make this easier. The small size of Burzyn is a win, for this.