Not a clue, unfortunately you missed one of the worlds largest, tct in the uk - but it was last month :-(

3dp will send you print samples, and a couple minutes sanding will smooth most prints.

bear in mind that post processing is a fairly big part of pretty much all current 3d printing technologies. I tend to use foam sanding blocks, small files and large files.
White pla is really amenable to post processing.
So that's not a real big issue.
And you'd probably be surprised how good the high end printers can do fast prints.

Kentucky wise try these guys: http://fortune.com/2015/07/13/3d-printing-louisville/

Oh yeah and it's: 'Additive manufacturing' when talking about it commercially :-)
3d printing is just for us desktop wallahs ;-)

The dws looks pretty reasonable. They do a clear resin.