I was initially reluctant to paint the pastor in a negative light, but with this information it seems he has done it himself. It's clear he's trying to get the work done ridiculously cheap. Beyond reasonable. And shown himself to be selfish by holding back money, in an attempt to make more money fixing up the house, and also going on an out of country trip.My husband also said to the pastor that at tax time, it would look bad if it states he did a job but earned minimal income and it could be brought into question whether he wasn't being truthful about his profit and avoiding paying tax. The pastor said he didn't know that and brushed it off.
As well as clearly not caring in the least how his decisions and manipulations affect your husband (and also you and your family).
This is not a good pastor in any manner. It's time to move on from him, spiritually.
As far as the work aspect, I'm not really educated or informed on such matters. But it sounds as if your husband got suckered and is paying the price.