Some people use the tongue-and groove flooring and like it. I presume you are talking about the wood snap-together type. I've never had that type of flooring, but I'm sure someone else will chime in. Vinyl sheet flooring or vinyl tile flooring would also work. We just put in some floor tile in the stick house that really looks like real tile. It's made by Armstrong. Very nice.
As far as your faucet needs, it should be easy to pick up a faucet to fit your sink. You do need to buy one that has the same through-hole separation as the original. These are usually 4 inch centers, or 8 inch centers. If it's a single-handle faucet, it should come with a plate that will cover the other holes in the sink.
2004 Tiffin Allegro 27.5 ft. P32 18,000 lb GVW. 8.1 liter. Workhorse chassis built May 2002. 21,000 miles. 2012 Jeep Liberty Toad. RVi2 brake unit.