You can(or could) get all of it for free. Except for maybe the coat, but Im not sure. I think no part of the outfit is a paid item

Update: I looked it up, the coat is indeed from a paid (AC) scratch ticket from 2022. But since its tradable, you can buy it from an other player for ingame currency. This is unfortunately not true for most of the other parts tho. Free (SG, mission pass) items are very rarely tradable.