EVS modded BDP-83 , or separate DAC ?

DACs come and they go. Its an evolving technology.

The Oppo-83 has great value since it plays so many platforms. Shop around for other mods, not just Rick then decide which implementation is best.

I have been watching one particular DAC and already noticing a couple showing up here. I almost bought it new just two weeks ago.

As I said, DACs come and go.

I would speak to those folks that had the mod done and get their feedback. Very difficult on this forum to answer your question. A DAC vs a Mod has so many sides to it, I would have to know more about what you are ultimately trying to do.

As far as the DAC situation goes, get a money back guarantee if possible and try at least 3 different DACs before deciding. Its the best way to live with yourself since its ultimately your decision. In a Mod situation, it will be difficult but you should ask anyway.