Urgent Home Fix: Support a Disabled Neighbor

I was not going to do this because Everytime I do a gofundme people complain.But my add on room the whole front needs to be replaced the all the 2x6 holding it up are all rotten and not even anything touching the bottom so can fall down..so got Prices on the lumber I need plus having it delivered is around $500 .plus will have to find someone to help me..as Being disabled and not supposed to lift I won't be able to do it ..thanks all.