Just generated orcish merchant on prerelease 16. Had a potion of wonder so drinking it was my first action... and I got Wish... It requires 5550 PP to cast meaning 2725 PP on silvernight. Now I am wondering if there is any way in hell I will be able to cast it before khelly to give him AoLS. I believe I once did this with a bard, who got wish with one of his class powers. However, I believe that his requirement was 3000 or 1500 during silvernight... and it was like "a few" adom releses back...
To be honest I seriously doubt that this is possible without some ridiculous scumming and most likely it is easier to find AoLS than actually cast the spell... but maybe someone has some bright idea I do not know of...