There are certain things, that as a beginner, you probably won't need. I would not worry about a comparator. You will need a powder drop to drop/throw powder near what you want, and you will/can trickle up to the load you ultimately want. If you are using new, unfired brass, its not likely you will have to trim them for the first couple of firings. 4064 is a great powder, I just don't shoot 168's, and forgot what my son-in-law used for 168's. Depending on what gun you are using, a load from the manuals should work fine. You will have to tinker with it to find out what the gun likes, ie: groups of 5 rounds with different powder chargers varying 3 to 5 grains per 5 round group. Shoot them, and see which gives the best group. Borrow a chronograph, and get the velocity and deviation across each group of 5 rounds. Don't do what I did and shoot the chronograph, its an expensive mistake! An electronic scale, and an automatic trickler speeds things up. Get a good scale. I have a Sartorius, pricey, but worth it. Using 4064, I weigh each load. Stick powders, like 4064, don't "throw"/"drop" well, so you will have to trickle up to your desired load. Get a set of dial calipers. They are invaluable for a quick measurement of case length, or overall length of the loaded round. Get a bullet puller, we all make mistakes. I think I have a kinetic? Its like a hammer that you place the round into a collar and then thump away until the bullet pops out.
As far as setup goes, I would set the dies so that, initially, the sized brass or loaded round it a tad longer than spec, and then work the die down until you get the desired sizing you want (shoulder and length) or overall length of loaded rounds you want. This is where the headspace gauge and calipers come in. When setting up the seating die, use the brass and bullet, no powder or primer. Just pop the bullet when everything is set up, and should be good to go. I have two presses, one for seating the bullet, and one for sizing and de-capping the brass. This way, I don't have to monkey with the dies whenever I sit down to reload. I only shoot .308, so I don't ever have to remove the dies.
I've rambled, feel free to ask for any clarification, if I haven't lost you. I'm sure others will feel free to critique my methodology, or lack thereof.
Shooting is a great sport. Enjoy!
John