I agree the pastor sound like he is paniking
To me buying a church building and hoping the members would come sounds good but what will happen if they buy a new building and they don't get the memebers they hoped for. In my opinon I believe the church should pray and fast and ask God if his will but also for him to direct people to the church and to supply the money as well
I have a same size church as you do and my Pastor doesn't guilt anyone he ask people is God laying it on your heart to be saved ,rededicate,join the church ,etc But to me he doesn't guilt trip anyone in doing it.