I had thought about a dragline, but an excavator can get into smaller areas, and hopefully with their planks they should be able to get into the swamp far enough.
There is a service around that has a 70' reach arm excavator that digs ponds, so I am hoping to get them out to take a look.
I am hoping to be able to spread the spoils around the edge of the pond so as to make a more solid base around it so it would be less swampy.
I have heard both ways, some suggest getting it done and asking for forgiveness later, which some people say is cheaper anyways, but if I had my druthers I would get the permits first. The way I figure it I would be enhancing it, by adding more space for waterfowl. And fishing would be an added bonus.