Providing Furniture Storage in Small bathroom and Kitchen?

[Tobey Grey]

First time poster! I recently bought a fixer 1200 sq. ft. 1920's property in Eastmont Oakland CA. I plan to convert the home into 2 units (one 2/1 and a 1/1 for Air BnB) initially and then leverage the cash flow to eventually redo the large standalone garage into a 3rd rental.

Currently I am rehabbing and the bathroom s are tiny as is the kitchen. I am considering buying this tall Ikea type storage unit the create storage for tenants in the rental bathroom (~$150) and a large kitchen island (~$450) for an open floor plan kitchen. Is it advisable to buy these items which are technically standalone furniture items for an "unfurnished" unit? My contractor recommended these would be cheaper than having storage custom built.