iflynething,
I know that this whole ordeal has been a bit rough to take, but it's definately not a total loss. the good thing about all of this is that you definately don't need Sig to seed you new parts. Follow the instructions that FHHuber has posted. And if you damage the wood beyond hope, you can always cut new parts. The pieces of the tail are all flat balsa. You can get some 1/4" sheet balsa and use the plans to cut new parts to rebuild the tail with. These parts are fairly simple to cut out if you take your time.

Hang in there. The Somethin Extra is well worth this effort. After your first flight you will understand just what I mean.