Excellent advice.
I used to wire cars on the side (done A LOT for members of this board in years past).
Like anything, there are more than 1 or 2 ways to skin a cat, and everyone has their own opinion. For cost and frustration, I highly recommend the PET type wire covering (I always call it Chinese finger). This is the most cost effective and readily available for the average guy. I absolutely prefer the Reychem, but most guys can't/won't afford $10-20K wiring jobs for their play toys.
I definitely agree with not soldering stuff....you will regret it in the long term. PROPERLY crimped is important and will outlive other options.
Here is a few pics for examples and ideas.