Is this [enchant + 3] = 3 stones; [enchant + 12] = 12 stones ?
for +1 you need 2 runes
for +2 you need another 5 runes
rest is unknown.
and this sucks big times!
46 slots, so to get all statues to +2 you need 46*8 = 368 runes.
since we can get 2 a day this means 184 days (half a year).
just a guess: if you need 10 for +3
46*18 = 828 runes, 414 days
and the temple goes up to +12
so it will take longer than we live to max it out.
i can only repeat this again and again: make the honor shop useful, add runes, mana potions, attribute and skill points to give any incentives for pvp.