Been through this also in the past. Each peice of advice that has been offered is true and you should, though timely, go throgh each channel that has been brought up. You should also get your own ins. company involved and let them fight for you. This will tell you what kind of company you trust your own insurance to. They know that if your not returned to same state you were in before the accident, you could file with them to recover the difference, and in most cases they will go after the other company to keep you out of their pocket. Either way, you are intitled to recieve back all that has been lost and have equal to what you had to begin with. Not only request your ins. group to have your truck checked out, but also have any and all equipment and components checked both on the boat and in your storage compartments, (including rods and reels), for any damage from the impact.
When this happened to me, my trailer was replaced totally, and I also recieved a checked for damaged equipment. Hair line fractures in fiberglass are sometimes hard to detect. To be on the safe side, I put ther plug in my boat and filled the inside up with water just below the battery level and checked for any water leaking out.
Good luck with this!