Reloading, to create a finished product from components, is a very satisfying effort. I went the least expensive way that is probably possible. I have been made fun of by buddies. Might as well let it be known here.
I started with a Lee loader and pecking with a hammer. It is ok but don't do it.
Now, this is because you seemed to have asked...
Get a single stage press. I have RCBS rock chucker, it is great. You can buy a Lee press kit but you won't be satisfied. Get a balance beam scale or a electronic one, a good one, as it all hinges on trusting your powder charge.
Case prep can be cheap at first, at first... So, get a Lee case prep kit and buy a Lee case trimmer, hand trimmer, for each caliber you load for.
Pick your 7mm and get a deluxe die set, Lee will probably do.
So, press, dies for 7mm, deluxe with shell holder and crimp die. Scoop too. Powder measure is probably electronic.? Use your press to push in primers after you did all the prep on the case, by hand, with your Lee case prep kit and Lee case length cutter. 0000 steel wool is your friend for now.
If you just reload one thing make it your most expensive ammo to buy. Sounds like 7mm Remington which is a fine long distance hunter cartridge, very fine.
Buy high end bullets you are gonna use for a purpose.
Do not reload for 9mm yet... wait.
For pistol? Get a 44 Magnum or a 357 and learn to cast lead....and make 38 special and 44 special type ammo. This is your SHTF stuff.
So, I hope I have helped. It is an adventure with many side roads. You can add all the extra fancy doo dads and performance enhancing things to your reloading bench as you see fit, over the next few years.