UO Second Age

Can anyone help me with pricing per charge for these type items?

MR / ?
Invis / ?
Mana Drain / ?
Protection / ?
Bless / ?
Lightning / ?
GHeal / ?
Heal / ?

Any help would be appreciated in this area. And if I'm missing any too please.

A guesstimate maybe? Anything will do, that's within reason that is.