I paid $50 for a MOSC Henkei Ramjet two months ago - which I thought was a bargain at the time since I was monitoring them for ages.

So IMHO:

Henkei = $70 for MOSC and $40 for loose
Classics = $50 for MOSC and $25 for loose

I also purchased a MOSC Ratchet a few months ago for about $80.

Henkei Ironhide & Ratchet have shot up in price - commanding about $100+ each for a MOSC one at the moment (if you can find one that is).