We’re considering adding black hardware and a black faucet for some contrast.

I think it's okay to not have a deluxe backyard, see what the market is demanding.We didn't want to or have the funds to do a full renovation, Here are some things we did when we got our primary ready to rent:-Tore out fiberglass tub and surround in master bedroom-Had new tub and tile surround put in (felt nicer for primary bedroom suite)-New toilets and all new faucets-Hired guy to resurface all kitchen and bathroom countertops-Took down popcorn ceiling and had resurfaced/ painted-Neutral paint and trim throughout (had different colors all over prior)-changed out washer hook-up valves to prevent issues Things I wish we would've taken care of:-regular yard maintenance hired out and baked into rent-LVP flooring throughout (kept mix of tile and carpet)Just did final walkthrough and got keys this morning for tenant moving out.

In another situation, my customer would buy faucets.

I had a tenant (not S8) that thought it was OK to let the faucet leak and run across the basement floor.  

Save the money, clean it till it shines, maybe basic improvements like a few new light fixtures or at least matching/bright lightbulbs, maybe a few new faucets, some paint touch ups and sell.If you’re hiring a Realtor®, they can tell you pricing in current condition versus pricing with a few minor changes.

You can easily unclog a faucet, and even showers can be unclogged using an air compressor.

So I need to decide the color of the vanity (cabinets, countertop and faucets).

I never pull permits for;  swapping AC, swaping fixtures (lights/fans/faucets), flooring, paint. 

As a GC I can advise try to retain control of your finishing material orders (anything where you need to make a choice ((tile, flooring, lites, faucets, tubs)) vs. construction materials (2x4s, mortar, shingles)) because we get those discounts on the finishing items and we keep them!

Each unit's % of total water-faucets or water-apparatuses (in the case of water)  C.)