I know it was obtainable only during 2012 when sythe had their own rsps, but I saw bartonsvodka with it and he joined 2013, is the minirank tradable, and if so how much?
A lot of untradable miniranks have been changed to make them tradable. Yes that minirank is tradable. Here is an easier way to check if they're tradable.
Open user center
Go to minirank directory
Hover over any minirank of your choosing to see if it's tradable or not