Try to carefully slice away everything EXCEPT the spar joiner and then see if you can twist the halves into position. If so, then see if you can figure out a method of injecting 30 MINUTE epoxy back into the joint. If you can do all of this and get it to realign properly you may be able to pull this off yet.
If it goes together but just doesn't look good enough to make you happy then fly it yourself and buy your friend another.