I own the Oppo 105D, and the I have owned many high priced cd players in the past. My local buddy has the $40K DCS stack and nothing beats that. I don't think you can buy anything used for $2K that would beat the Oppo. Playing FLAC via the Oppo is amazing.
I suggest you buy the Oppo and listen to it. Then get it modded if you still not happy.
I suggest you buy the Oppo and listen to it. Then get it modded if you still not happy.