There are basically 3 types of rifle/pistol presses, single stage, means you have one ram and one station to hold 1 die, you change the die at each step of the reloading process.
Second has a turret that holds 4-8 dies, you rotate that for each stage. Allows you to put all 2, 3 or 4 pistol dies in the turret at once. Third kind is a progressive, thats generally setup for one caliber and gives you a completed round for each pull of the handle.
Mine is an old 1970's something Texan Turret.
As for the procedure, first I decap and resize in the press with the resizing die then clean the primer pockets out. Then it goes in the tumbler/vibrator where it gets cleaned up, 4 hours or so.
Then I pull them out and run it thru the expander to open the neck up. Then I sit in front of the TV with my RCBS primer tool and prime 100-500 rounds.Then the powder measure gets filled with powder, it hangs off the side of the turret, powder in, into the press, bullet is put into the neck and the press pushes the round down to the correct depth and crimps the round in place.
Rifle takes a few steps more to trim to length, resizing is a bit harder, I reload for my .308, 8mm mauser, 30-06 and used to reload our SKS when we had it.
Stuff needed: GOOD powder scale, good press, dies for caliber, priming tool which may come with the press or may not, I prefer my RCBS hand held one, powder measure and powder trickler, very important when doing high power loads so you get it right. A good speer, Nosler or other reloading manual with the bullets you are going to use.
Shotgun reloaders, MEC is a good bargain, simple and easy to use, yours is probably still good, they have not changed in many many many years.