Heavy-duty shelving unit, as seen here: $160.
Loft bed frame, as seen here, here and here: $225 ($175/labor, $50/difficult space; negotiable based on the particular challenges your space may provide).
Over-toilet shelving unit, as seen here, here and here: $100.
All projects are contracted on an individual basis according to what you can afford. This is about giving you what you want for the amount you want to pay.