for the DLC's you can just use a creamapi if you already have the game,or you can just use them on a pirated version on multiplayer (you have to convince your entire table to pirate it tho)
there is even a mod tool if you don't own the game on steam to download automatically from the workshop.>>13112
This on the other end necessitate to have all the assets yourself as PNGs,and fork over cash for the subscription service depending on how much you need in term of space. (hard limit of 5 players without paying,and 100mo of files max)
It's possible to do it without using any money at all,but it's more time consuming than just picking all the assets in a free mod,but it's easier to setup the game itself.