Sorry to read about your crash! Sounds very similar to one I had many years ago, where my front wheel went into a crack in the road.

Here's is what I would do: replace the fork so you can continue to ride while you search for bike. The new fork does not have to be from Trek -- it could be from Performance Bike or Nashbar. You don't want the new bike to be urgent. Once you get the new one, the old one can be demoted to the trainer, perhaps to be ridden on rainy days.