Could be done in 1 day depending on how the Inspection (step I) goes, and if you have any accessories it can stay in JB for awhile. Mine went from D1 to JS in 1 day so YMMV
Mine is still sitting there waiting for a carrier to ship it and has been since the 8th of December. It only needs to come 150 miles South... So hoping by at least the end of the year.