I have a mobile home and my brother put in for me 6 new construction windows. he did all the outside work but the inside of the windows he "didnt figure into the cost" because he thought something was there that wasnt. now in the inside of the window its just studs and the window. I need the inside of the window framed out to hide the factory edge of the windows. I dont need anything fancy. he's saying it needs $700 of master carpentry work. though he's willing to trade for me buying him a tool or two from home depot that he may need for an upcoming job. How full of it is he? I seriously think he's lying. just needs 4 pieces of stained pine in the frame and some trim on the outside.