it depends on what you're fighting and what bow you have.
if you have DDTT definately DEX + LUK, you'll have 190 aspd without any agi (just an awake potion) so you dont need agi. This build assumes also that you dont need defensive stats, meaning you'll be either killing enemies before they reach you, or ankle snaring them. you neglect defensive stats like AGI and VIT because you won't ever be attacked. This involves in most cases heavy use of charge arrow + ankle snare. but your falcon will be going crazy and you'll do max damage.
if you dont have a DDTT then you'll need AGI, it's the only way you'll have decent ASPD. If i was in this position i think the fastest way to kill things would be to get your AGI high enough to get decent ASPD (maybe 180-185) then get as close to 90 base dex while still keeping a multiple of 10 with IC (for example, 89+31 dex with IC, which equals 120 DEX, but be sure to factor in Improve Concentration, as it will always be active while you level) and then put the rest in INT.
the strategy on the second build is to bring GJ and DS like a madman from hell. You'll have decent aspd, high enough DEX for decent damage output, and INT for more SP and SP regen
