Yes, they come with the heim joint bushings, and all the nuts and stuff needed. When you first put them in you can match the length, but I took it for an alignment because I wanted to run less caster (quicker turn in and I needed it for my tires to clear the Gnose and sideskirts).
They are one of the few things adjustable in the front end of the car. Nothing in the rear is adjustable. So if someone says 4 wheel alignment, they are ripping you off, get only the front. The thing is when you get coilovers, the height needs (or at least really close, I used a micrometer between the collars) to be the same in the front and rear or it will throw off your camber in the front and your camber/toe in the rear.
You can put the TC rods in anytime you want, they are a 1 hour job. and really once you have the front struts set up (cut, welded up and with a hub/brake rotor on) the take like 30 min and the rears about the same.
What are you doing about the top hat in the rear?