I recently acquired (for free) a Yamaha Clavinova CLP-350. While it sounds and feels great, it is in a poor state of repair (sticky keys and other keys which randomly sound out much louder), and I suspect that it may be beyond economic repair.
I'd like to buy a used instrument but I don't have a huge budget - could possibly stretch to £500 but would really prefer to spend £250-300. Am I likely to find anything worthwhile? If so, can anyone recommend any specific makes/models?