This can be profitable?
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So, some Prosperity and Efficiency going way back, a Verse here, a <a href="/wiki/Correct_a_Verse_of_Counter-Creed" title="Correct a Verse of Counter-Creed">correction</a> there, and a <a href="/wiki/Sell_five_Uncanny_Incunabula_for_850_Rat-Shillings" title="Sell five Uncanny Incunabula for 850 Rat-Shillings"> bulk exchange</a> in another there.
( 2.5 + 85/5 ) / ( 700/510 (~) + 2 + 1/5 (Ratket) ) = 5.45 EpA