Imk 2 - tier 0 through 5 ~ 45 to 60k..... tier 6 through tier 8 ~ 60 to 80k...... as far as I know no tier 9 or tier 10 yet.
mod mk2 - 1 in game (I think), wont ever be for sell lol I think its high tier 8 ish right now ~ 70 to 75k
Imk3 - 2 in game, only one is active and not for sell at tier 7.9, ~60 to 65k (once I tier it 65 to 75k)
mod merc - ? tier 0 through 5 ~ 60 to 70k..... tier 6 through tier 8 ~ 70 to 85k...... tier 9 and 10 ~ 85 to 100k
These are all my opinion, so I wont argue them.
Hope it helps the OP.