Is my teg done for? Please Help!!!

Ok I knew my driprails were rusty but since this last winter there are destroyed, and I think that the frame runs with the drip rails (Or is the drip rails). So is my frame starting to rot? Or can I just have this area rebuilt? Any ideas on what it might cost and how much work it is to replace? Also behind the rear wheel wells where the drip rails finsh is totally chewed up. Here is a pic of the drip rails :frowning:
Is this the end of my tegs journey?

Here is a photo:
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cant see pix

that looks pretty nasty. I would try to sand it down and paint it with black primer so that it looks better and helps prevent rust. or u could grind it out.