I just read Wyrom post where he states:
Auction is the preferred method to dealing with some of the highest services (permabless, spell knowledge, glamour tattoo, defusion, coraesine, briar (tier 3), weight reducing, etc). Reserves (which will be the MB) will be 100m to 300m depending on which.
Rune tattoos and x/day are 10m.
So alot