Lets distill this down a bit and simplify things in as much as you are starting out (and probably on a budget...
Go get yourself a single stage press, RCBS Rockchucker, Lee, Lyman, preferrably any brand that comes as a 'complete kit'. Myself, I use an RCBS Rockchucker and always will because it will outlast me.
While Dillon builds a nice machine, it's expensive and Dillon's have proprietary features, get a press that you can use any manufacturers dies in and thats NOT a Dillon, especially not starting out...
Keep it simple, no press priming, no multiple station (turrett) presses. Single stage die changout.
Purchase a loading manual, all the manufacturers publish them. I recommend Sierra or Berger but I have all of them because I use every manufacturers bullets and each manufacturer has on staff paid ballisticians that spend countless hours perfecting various loads for their bullets, always start out with their recommendations.
Your listed calibers encompass both straight wall (pistol cases) and bottleneck (rifle cases). Each design takes different dies and procedures.
Typical straight walled pistol brass takes a 3 or 4 die set and typical bottleneck cases take a 3 die set. Straight walled cases will have a sizer die (with decapping pin), a seater die and a crimp die and some have a powder through loading die (Lee). Bottleneck cases take a Neck Sizer die, a full length sizer die and a bullet seater die. Decapping pins come with all die sets btw.
Starting out, forget about bushing dies and bump dies and micrometer bullet seaters that comes later. Get the basics, learn the basics and read the reloading manuals first, every manual will have a section explaining reloading and what to do and what not to do..
Bottleneck cases 'grow' with each ignition so you'll need a trim die or a case trimmer (go read my review on the WFT trimmer in the review section of this forum). Straight wall cases usually don't 'grow'.
But keep it simple at first. single stage press and die sets.
As an aside, I have always used a beam scale (the one that RCBS offers with their Rockchucker Supreme Reloading kit and I've never had an issue. While it's not fast, I don't reload fast. Getting in a hurry is an invitation for disaster like a double load...lol
The key to reloading in any caliber is take your time, follow the instructions in the reloading manuals and above all check and recheck your loads (powder) in your cases and COAL.
Must haves...
*Correct (for caliber) die sets
*Reloading Press
*Powder scale
*Powder charging tool (for throwing charges)
*Primer seating tool
*Calipers (digital or analog) for checking case length and COAL
*Case lube (for bottleneck cases)(straight wall pistol cases don't need lubed to size)
*Caliber specific trim die or case trimmer (for bottleneck cases)
*A dedicated loading bench or somewhere where you can concentrate and arrange your components without interruption....
Forget about all the fancy stuff for now and concentrate and get proficient on the basics, then progress to the finer points like case annealing, bushing dies, bumping shoulders, stainless tumbling, flash hole deburring, VLD case mouths and all the things that proficient reloaders do to increase accuracy (and spend more money
)
If I were you (I'm not and I realize that), I'd get a complete starter kit like the RCBS Rockchucker Supreme or the Lyman or a Lee complete starter kit. All will have the basic, necessary tools and components (except die sets), to get you started and all come with their specific manufacturers reloading manuals.
