Boy, that crate was a flashback for me! I just got mine in June.
Congrats!
Regarding he lean in. Yah, There are lots of parts and bolts to tighten during alignment and set up. I spent a lot of time and had mine "perfect". After a ride or two it was out just a little. Also found it pulled a whisker to the left when I rode it. I checked alignment several times and it was good. Then I went to Cycle Sidecar .com (A CMW company)and after doing some reading I decided to set my tire air pressure exactly to their recommendations. Front : 22 psi , Rear : 35 psi , S/Car : 25 psi. That solved my pulling to the left problem and changed to lean out angle as well. Lean out is not easy to measure. You really need a 2 foot framing square and a good flat floor, some kind of sliding caliper helps, you can get one for 5 or 6 bucks at a Chinese tool import store. Using the square slide it against the rear tire and measure the difference in distance from the bottom of the rim to the square and then measure from the top of the rim to the square. That is how I did it. I figure at least a quarter inch to a max of half inch difference is good. I did not bother to trig it out to the angle, I can if you would feel better having it exact.
You will need to tighten hardware a few times the first few months. I also recommend taking some lacquer, (nail polish works) and mark the bolts where they meet the frame and mark where all the parts that swivel meet. Then you can just do a visual from time to time to see if anything is moving.