In case you are not aware, you can respec for free at enemy time before up till lvl 50 and(possibly or) RR3. So you don't really need to adapt levelling spec to your end game spec, just put points into bow and spear for levelling is fine, maybe extra in BC.
This thread:
https://forum.playphoenix.online/viewtopic.php?f=24&t=4876 has some discussion about hunter spec you might find useful.
Personally I went with 39 Stealth, 35 Archery, 32 Beast, 46 Spear. Then to reduce stealth and increase spear as you progress in RR. I am not really sure how good/bad it is compared to other specs. My hunter has been a struggle so far, and frankly I feel very disenchanted and disappointed about it as a whole.