the only ways to do it in f2p is bh, party room, and junk trading. making junk in f2p is a bitch and it would take you longer to make the junk in f2p than it would to just make the money on the acc. if your level is too far or you dont have the def/pray for bh, party room is your only choice.
party room is the most dangerous tbh. theres always someone there to styeal ur shit and u can only do 49k at a time. i say get mem and dstone it or junk trade it. its either that or risk party room.