Here’s a cast-bore Reviol (no tuning slide) at a Delrin price. Since it is a Buy it Now listing I figure I can mention it without screwing up anyone’s ultra-crafty bidding strategy. 
http://www.ebay.com/itm/200818090253?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649