Polished nickel finishes will cost more than the more typical chrome. Most any brand will make a single-handle faucet - it will either come with or have an optional plate to cover the existing holes. Finding one with two valves and the spout for a 3-hole sink requires knowing the spacing of the holes. Personally, I prefer a single handle to get the desired volume and temp. This type of replacement normally isn't a huge effort, and many DIY'ers are capable of doing it themselves. It can be a pain if the nuts (assuming the existing valves have nuts on the bottom) are rusted, but some single handle ones unscrew from the top, then slide out from the bottom. A basin wrench doesn't cost much, should you need one, but sometimes, you have to cut the foolish things off, and that can be awkward. This type of wrench has a long shaft to reach up behind the sink to loosen (or tighten) the nuts, should the valve have them (some use a clamp and a screw). You should also replace the shutoffs at the wall if they are old; preferably with 1/4-turn ball valves. That price would seem to equate to about a 2-2.5hours of labor with the faucet and incidentals. It might take you that long, but most pros would be done quicker. My mother had a similar faucet that was replaced with a tall, single handle pullout spout. To fill the side sprayer hole, we bought a soap dispenser that matched. It came with the plate to cover the other holes. This was a Delta, but Moen is good, too. I have a Grohe in my home that's been working fine for about 10-years now.