I work with type K thermocouples at work for high temp testing. On occasion we have 3-4 feet cut offs that are no use for us. I can weld/prepare the probe ends for you for the price of shipping. All you need is to get your hands on a type K digital reader, I believe they can be purchased for less than $50 for a simple one. I can probably get my hands on 2 samples early next week. These are fiberglass insulated and good for above 1000 deg. C. Send me an email if you are interested.