Look at loading palets, fenching material, even cheaper reclaimation building material. The harder part is getting people dedicated to build it, vs the material use. Even putting up a charity-esque game for the sole purpose of funding this will go a long way: shows the players that the field is not dead, and even start a write in of what the people would want to seetbuild (give them 3 choices or so, and they pick what they want). But the big thing is, letting the people know and letting them choose, as they will come to the new structure.
Hell, even ask around to the players, for anyone with building experience. The chance that a contractor could get better prices, know of who & where to go to, would go a long way (even naming rights, or a good discount for future attendence would be a nice bonus.