It is difficult to bot to membership on OSRS. (a lot easier of FSW).
Why? Because every good f2p moneymaker is either botted heavily, unknown to the wider public or too low of a volume for botfarm.
You should do some market research before. Volume is very important. Don't be like mage arena botfarm guy who crashed infinity boots market and is so proud of his method.
To get a good overview of the market I use https://prices.runescape.wiki/osrs/ and I like it very much.
Pie shells are only feasible for one botfarm at best.
https://prices.runescape.wiki/osrs/item/2315
Dyes are not feasible at all, daily volume is only 10,373
https://prices.runescape.wiki/osrs/all-items?search=dye
Emerald jewelry would be okay, to bot in f2p and there are crafting scripts out there.
But what comes after it?
From my limited research and knowledge there isn't much profit in making jewelry even in p2p.