RS3 Noob

I really don't suggest botting(goldfarming to be specific) on rs3 as rs3 takes a lot more resources compared to osrs clients, and osrs gold in general is significantly more expensive. You can freely go with rs3 if that's your personal preference though.

I wouldn't do it if I was you. I recently came back to RS and tried botting on a fresh account myself and was banned within 24 hours of starting it up. Jagex's bot detection is really good nowadays and it's honestly not worth receiving a ban multiple times, especially on an account you don't want to end up losing.