I am planning to try to get to 99 fletching in the coming weeks in old school runescape.
So far i am only level 54 fletching but i have been woodcutting myself.

I am going to need supplies - Maple Logs, Bowstrings and Yew logs. Because i need to sell the bows i making to pay for the next set of materials.

I have came up with a plan to support how many of each logs or bowstring i will need.

So far i have based the whole guidelines around a set price of each item that everyone in the community is selling for at the moment.
Maple Logs - 100gp Each (will end up needing - 4107)
Bowstring - 60gp Each (will end up needing - 21270)
Yew Logs - 380gp each (Will end up needing - 16814)

Also to pay for these im going to sell the finished bows to mages who can alch the bows for profit, i do not know how much profit they make but looking around i have found people selling them for :
Maple Longbow - 200 each
Yew Longbow - 550 each.

Sorry for this topic being so long.
Any help to the changing prices of these items on the market will be apprechiated.
Anyone who wishes to help can comment below to let me know you are interested.
Ingame Name - s1dw3ll

ps ; i have only calculated til lvl 85 and will finish looking tomorrow