Hello, I recently bought 1988 Miyata 615 for $210 CAD (being happy at the time of finding the bike the price), I did not realize how bad the rust was on the fork nor the chopped teeth on the drive train. The middle chainring has 4-5 missing tooth although when I ride it, the chain does not slip. The first chainring has a teeth missing as well. How salvageable is the frame from the rust considering that there is a little piece missing on the fork (left side of the fork as shown in the last photo). I imagine it is better to replace the entire crankset instead of just the middle one. I do feel like I got scammed because I didn't realize that the crankset was in such terrible condition and missing teeth meanwhile the ad photos were never close-ups and low quality overall but it is my fault for not checking everything. I looked at the frame for cracks and rust and it did not look as bad! Even the front derralieur is crumbling a bit where the bolt/screw goes. What are your suggestions, the bike does ride nicely. Can OA bath save this, or other alternatives (apart from buying a new fork).













there appears to be a little chip near/or the fork