Also, if you have Floor & Decor near you go check out their LVP products.

Hi I work with a supplier who provides bed sheets, comforters, home decor like macrame, throw blankets, throw pillow covers at extremely low prices. 

floor n decor.

And I would think one could also put metal siding on the containers to decorate it up.To be honest, I don't know what I'm getting into.  

I think you will be more successful in the investment if you get lots of advice from local home decorating professionals, real estate agents, and others that deal with home buyer's needs and desires.  

.* fireplace with black metal flashing/backstop* downstairs half bath with old sink/lights/weird rattan wall decor (not in the tropics!)

Obscure it with shelving- You can Built-in bookcases to steal the focus, while stylish accessories turn the panels into a decorative backdrop.3.

We also include rules about candles, decorative holiday lights, storage of flammable and hazardous materials, smoke and CO detectors, fireworks, portable heaters, extension cords, electrical safety, egress, excessive cluttter and hoarding, and our no-smoking policy. 

Some units have nice wood-burning fireplaces, natural gas ranges, decorative curtain rods, carpet, and vinyl-plank flooring that looks like hardwood.

Very important to include a section in your rental agreement about what the tenant can and can't do regarding decorating and modifications.Property Condition Reports at time of move-in are important and will help keep you and your tenant honest and out of trouble.