[Celeal]

O.Kote is very nice to have, but is not a requirement for leveling monk. O.Kote is expensive because you can use it from level 34 to 70+. Since O.Kote is good for many levels, and if you insist of getting it, you can try to get it at later levels, when you have enough resource to get it.

Added:
An alternative is, use attack food + accuarcy gear setup until level 40~45, then have both sushi and attack food setup ready down the road. Use Beserk, focus and Boost wisely.