You made me (and I'm sure others,) chuckle at the comment about buying a Redhawk so as to not wear out the Super Blackhawk!
There are PLENTY of Old Model .44 mag Blackhawks from 1956 & since that haven't been worn out in all those decades of use.
And trust me,, unless you are the type to load a LOT of top end loads & shoot a LOT of them,, you won't wear out a Ruger.
The Glock, the Heritage & the Pietta can't claim the same strength rating as the Rugers.
Reloading,, your numbers seem a bit high. If you already have the cases,, primers at the elevated price of .10 cents each, bullets at around .10 cents each, and powder at .10 cents per charge,, (all these are general rounded numbers,) makes me wonder where you get .45 cents per round.
If you shop around a bit,, primers are in the $75 range for a brick, (7-1/2 cents each) powder is running $35-$40 per pound,, at 7000 grns a pound,, even H110 can load around 300 rounds approximately, which is about another 7-1/2 cents per charge. Bullets,, are usually less than .10 cents each for plated or coated ones.
Now,, if you are buying cases,, then I can see the expense. But once you get the cases,, they can last a LONG time. I have cases I've loaded a lot over the decades that I acquired in the 1970's & 1980's.
Of course,, that's still a savings over buying factory ammo.
And you have discovered what many of us serious handloaders & shooters already have learned. Quite often, the most accurate load is a mid-range load in general. Your Hi-Tek coated bullets are proving to be good. And if you build a mid-range load, using a powder that doesn't have as narrow of a range as H110,, you can use less powder & that translates into a bit more savings.
I'm an instructor,, and when I teach, I stress the least expensive but most important thing a person can have is knowledge. A couple of GOOD reloading manuals are inexpensive tools to assist in the process. Lyman, Hornady are 2 of the really good ones. Hodgdon's magazine type isn't nearly as detailed but has good load data. I also buy Nosler, Speer, manuals as well. I cross reference data,, AND,,, study the "test firearm" they used to get their data. Some companies use a "Universal Receiver" while others use actual firearms. This can make a difference in results. And the manuals will have a short few paragraphs of info on that caliber,, OFTEN listing what they found to be the most accurate or best overall. Valuable knowledge.
Since you are loading for .44 mag,, and using Hi-Tek bullets,, I'd do a serious search for Unique powder. It's well over a century old powder,,, with a very good & proven track record. And you can easily load mid-range loads while using a lot less powder,, which stretches your $$$ invested in shooting.
I really liked your comment; "I promised myself to be safe first. Second, simple, no red dots or scopes. Third, fun."
Safety should ALWAYS be first. Using H110 is a powder which has a narrower margin of safety in adjusting the loads. It's a good powder,, but I reserve it for heavy loads using jacketed bullets.
You put "fun" as third. I think fun should be the second thing. Shooting should be for fun first,, and if using a firearm as a tool, using the tool for fun can make using it as a tool easier.
You mentioned "Simple" meaning keeping the equipment as basic as possible by the way you stated it. But you have also stated you are retired,, and as such,, I'm assuming you are a bit over 40-50. As we age,, our eyes age & seeing sights isn't as easy as it once was. MANY of us "older types," (myself included,) have been frustrated at the diminished abilities our aging eyes have caused. Often an optical assistance item,, can help reduce frustration and return the fun factor.
You may want to keep that in the back of your mind.
But it's fun for me to see a new member here,, who is approaching things the way you are. Kudos!