This is your best bet. Check SOLD listings to find kits that actually sold. This is a very accurate gauge.Search on ebay and check the little box to show completed listings. That will show you recent finished auctions, green prices sold, red did not. I see a recent d60 kit sold for $172 + $17 shipping.
So I'm a little lateSold it for $200 and going to check out a D3200 with 18-55mm for $300 tonight.