There is an eBay seller selling cheap Quadro M3000M's (~GTX 965M) and M4000M's (GTX 970M). I picked up an M3000M for about $55USD plus shipping and I think the 4000 is about $80.   
Hi, I am looking for the R9 M295X/R9 M395X/R9 M485X VBIOS. Me and some other people want to modify an s7100x that makes video output in LVDS and EDP. 
R9 M395X VBIOS