Just scored this craftsman 9" radial arm saw for 15 bucks. I plan a restoring the whole saw bass and all. I am looking for any advice you guys have on this saw for the restoration. I also would like to know if any one knows where I can find a combination blade that is 9" for the saw

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It looks like it sat in a basement that got about 3" of standing water in it. That rust will be difficult to remove without a sandblaster. Depending on how much you put into it these rusty spots will normally come back with normal priming and paint. After cleaning it off it would take epoxy primer to seal off the rust and that is expensive. You can get it at places that sell automotive paint. The 9" blade will be a bit hard to find but you should be able to find some online or at least ebay.

I have some epoxy primer left over from another restoration and I was planning on useing a angle grinder with a wire brush to take off the rust I am planing then on spraying the base with black truck bed linner because of how durable it is as for the I'm going to buy a 2'x4' sheet of 3/4" mdf and was going to put a white bourd like material on it as a sacrificial top