Seems like the Flag listed a few posts down has the right sort of idea about valuation, so I've just copied that for the most part.
Will keep this going until noon EDT tomorrow (so about the next 15 hours total).
Mane = 9 Gotk - Limit 3
M-UEB = 7 Gotk - Limit 3
RIF/SIF Trifecta = 4 Gotk
Flag = 2 Gotk
Swgn = 2 Gotk - Limit 3
ILAS = 1.5 Gotk - Limit 3
Doop Rune = 1.5 Gotk
Gotk