bags other than the kodo one are made by tailors if u need any ask in g chat and im sure ppl will have spares ore be able to make u some.
ppl do buy the low lvl mats for skining etc whent het are gettin a profession up cause they have changed theiir mind about what they are doing and they have money ( or the bought gold from a gold seller

)
while u are low lvl id suggets focusing on skill training and only lvl the leatherworking when u have excess cash sell the mats u gather to make cash.
also their is a mod out their called Auctioneer - go get it it makes the selling on the ah easier and pst me or call me and ill give u a run down on it
cheers gob