The one I just picked up has the plug as well. I'm thinking of painting the legs blue for mine.

I'll probably just paint them blue with rustoleum or something like that. Powder coating sounds cool but expensive. If I want to go the powder coat route I can always take or pick up a space sys11 leg set at a later date.

As for flippers, I just ordered a pair from bayareaamusements.

Finally, I don't know a ton about metal posts but they seem to be the standard post (at least the same post as on my BK2K). I found a little bag of parts in my coinbox which had a post in it so I assume that is the spare post for the drain.