For a while, the Yamaha Oak Customs were being blown out at $1399. So $1000 for a used kit from a shop sounds about right. Smaller sizes probably won't save much, if any. Cats looking for 20, 12, 14's usually aren't interested in 22, 12, 16's (and the inverse). You might find a kit on eBay for cheaper, but then, add shipping, you're probably back up around $1000.