Remove all debris or obstructions in way of existing beam access. Fasten timber plankage to interior joist work and install vertical iron shoring along complete length of existing beam/load bearing wall. Slowly begin lifting structure off of existing interior load bearing wall and secure the above structural load.
Once vertical structure and joist work is secured, remove existing beam/load bearing columns from basement and dispose.
Install fresh vertical iron posts and plates where applicable and pour specified concrete footings for HSS posts. Fasten new vertical posts to IBEAM with approved hardware. Once post footings are cured, remove shoring and rest structure onto new post/footings installations. Remove and dump all debris.