There is also ******'s Classic Wings, which I believe is an eBay store only now. When I first got my 1200, he went out of his way to get me a few small parts that were no longer available new, and would have been difficult to fabricate. He had to go out and pull them off a bike he was going to toss. He said he did not normally list those parts as no one ever asked for them, and they usually got scrapped. They were very small parts, I got them cheap, and for very low shipping. I was impressed.
It's good to know that the 1200 rear caliper is the same as the 1500. I may have a tiny leak in mine, even though it was rebuilt, and the bore was polished and looked good. It originally had some corrosion, and may have just enough pitting to cause a small amount of seepage. I recently had the left saddlebag off, and noticed what looked like brake fluid on it. MC was still full.