Nobody offers 1.5 mil for repairs. Nobody buys the bazaar items for insane amounts (its extra 10 storage space)
Yes there is some extra gil in the economy but most items on wards are no longer needed and have become stagnant so they drop in price really fast. Especially since they lowered the input gil.

No subjobs needed as such.

Crafting is up to you there is no real benefit as almost everyone can craft something for you or you can buy it cheaper on wards.

Just stick to gathering and build your gil and buy your stuff is the best way for now. Crafting will set you back a long way and is something to do at the end.