youbet
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Good point, they should buy the parts themselves. No use digging a deeper hole of debt that they seem unwilling to pay !
It sounds like the still unused paint and electrical supplies are already purchased since the total material cost has been calculated and presented to the neighbor.
It sounds like maybe $100 or less. A gallon of paint (maybe two), a few electrical outlets and light fixtures. OP said the first, paint eating, coat of paint was already applied and the electrical was already roughed in.