I am currently lvl 63 herblore and have around 40 mil rsgp to spend on the skill (can get more if needed)

What i want is 84 or 85 herb done, i want it done by hand (no bots unless its rsbots.net)

answer these questions when replying:
1. how much would you want for it
2. are you going to use any bots? if so which one
3. how long will it take
4. how much rsgp will you be needing

thanks!