I personally bought all the ranging potions(2) and caviar i needed for 80 -> 99 herblore when i trained it And subsequently sold all the ranging mixes(2) on GE or by lending my SGS. you just need to be a resourceful merchant. caviar always sells ranging potions(2) usually sell slowly. 1k a day, depending on market conditions. since potions in general are crashing, potions(2) will sell particularly well for now and the following few days as a result, mixes(2) will sell very poorly. once again this method requires you to be up to date on the potion market. you'll have to be prepared for whenever mixes(2) start selling, which probably wont be for weeks or months. Ok perfect. I just want enough to get to 85 for now.