Elroyboy5

I have recently been looking for spares for my a3 2.0 tDi and I know someone selling a cat c . The only thing apart from cosmetic I can find is a radiator leak. It's got about 190,000 on the clock. He's asking for £1000 and to be honest its probably better than mine! Does that sound a fair price? Bit new to it all. Any advice would be grateful.