Depending on how soon you are looking to buy, I will have a set of mint 06 SE(silver with red caps) forks for sale in a week or so. As soon as my race forks come in these are going up for sale. Probably looking at $250 for the set.
I have some forks off a 06 636. They are mint and freshly rebuilt. They will cost you more than stockers because they have RaceTech internals and they were built by Thermosman. Absolutely destroy the feel of stock, super smooth and reliable. Most people don't know it but the suspension on our bikes is one of the first things we should upgrade. Let me know if you are interested and I will give you a deal for sure.