good choice coz its fast too, and you dont need to spend anything, i got all this anchovies untill like 25 fishing and sold them and had enough for liek 1k feathers which easily allows you to get around 40 fishing, then go fish trout+salmon, when you sell you get enough to get arounf 16k feathers that would get you to 71-73 fishing. so yeah, and you would profit greatly (well not that much, but enough to get membership) youd get around 1 mil.
I would get your combat level up a bit...kinda randomish like not 40 or something but like 43 or something...then i would get up fishing to level 60 (takes around 2 days of solid botting) then sell ur fish u get and then woodcut to 70 or w/e i have done this about a week ago with no bans (hopefully...havent checked in a few days ) hopefully i could help