Contact this guy...
[email protected]
He had an Escalade ESV Platinum Edition Cluster that would fit your Silverado for $299 US plus shipping. If you go to eBay and look up this link.
http://stores.ebay.com/Extreme-Facto...toreviewQQtZkm
That's his store. I can't afford one right now but, when I get time I might just have to invest in one....