To answer your chiller question ... A bit of perspective first. As you can tell from the responses here, there are lots of ways to do things. They all have pluses and minuses. A lot of it comes down to how you want to spend your time and money.
I do full boils on a propane burner in an 8 gallon pot. (You still have to watch for boil over.) I normally work outside but use the garage when I have to due to too much rain or snow. I start with 5-1/4 to 5-1/2 gallons, depending on outside temperature, to account for boil off. A wort chiller, and the propane burner, are big time savers for me since I can heat and cool much faster. You can minimize carrying heavy pots by filling, or at least topping off, the pot after its on the burner. You can also play it much safer by cooling the wort with the chiller while the pot is still on the burner. I do lift the full pot to pour the cooled wort, through a strainer and funnel, into the fermenter. A pot with a spigot, or siphoning can avoid this lift.
I set my copper chiller up with garden hose connections so it can be used outside. For winter use, when the outside garden hose would freeze, I added a hose bibb under my kitchen sink - that avoids the need for an aerator adapter. The chiller hose connections, which need to hang outside the pot to avoid leaks dripping into the wort, also avoid the risk of hose damage when the chiller is placed into the still boiling wort. (You need to boil the chiller a few minutes before the end of the boil to avoid wort contamination.)