Wow, Steve.....that's too close for comfort and I'm (we're) so glad to read that everything but the plane is okay.
If you decide to replace the wing, Dawson Aircraft in Clinton, Arkansas (877 293 5300) typically has a full (and long) row of salvage 150/152's with their butts up against the fence.
Not sure where you're located but there are numerous salvage yards around the country to pull from.
Or as Michael says, a good air frame/sheet metal guy might be able to work some magic but it has to come apart first in order to see how deep it goes.
Good luck and keep us posted but more importantly it's very good news your son came through this unscathed......dirty britches probably but no harm to him.
