You don't even need to spend that kind of money on a grinder. You can get good chromium grinders online from a variety of venders. Kellysgreatproducts is another good ebayer. Here is one of her grinders that might fit the bill:
http://cgi.ebay.com/ws/eBayISAPI.dl...688829&ssPageName=STRK:MEWAX:IT#ht_1466wt_907
But AG's got a great point about taking a couple of hits and recrushing; it works just fine. IMO, get the best deal you can from the most reputable dealer on the LB, and use the grinder supplied until you can afford to buy another. Of course, you already knew my opinion.....