Wow, 400 is a good price for a Gretsch of those sizes. Since they are damaged, let's look at the edge. It can be fixed. You can use a high quality wood filler to do it. I know there is nothing else that can be done in this instance.
The interior of the floor tom is where the repair will have to be done. Yoiu will need to "warp" the shell, push on it to open the crack enough to get some of the epoxy inside. I am not going to tell you you will ever get a better decay out of this shell as the damege is extensive, but we can get it to a point where it will have better integrity. As you do this, you may want to use a high quality wood glue, that is up to you. In this repair, it might be a better way to go, instead of epoxy. The epoxy may inhibit resonance and decay whereas wood glue may promote thise properties. I have a video on youtube that you can look at to see a repair I did recently on a broken shell. Below is the link to the videos, I have a few for different problems.
[ame]http://www.youtube.com/watch?v=Lfs1kGgPSoI[/ame]
[ame]http://www.youtube.com/watch?v=AoKE-jfNitg[/ame]
[ame]http://www.youtube.com/watch?v=OsteHP0634s[/ame]
[ame]http://www.youtube.com/watch?v=CSsvAJtmz14[/ame]
[ame]http://www.youtube.com/watch?v=Axj7jZWD95s[/ame]
There is some valuable information in these videos. If they do not quite get the info you need, please let me know and I will see what else I can do for you.
We have a member in Italy. Let me see if I can contact him, he is an attorney.