Like, the single biggest problem with Star Wars as it currently stands is the weight of the canon lore.
Move the timeline forward, rather than back, and you've got a blank slate to do anything you want. You'll want to keep the broadest strokes; the Force, Light vs Dark, heroic journey pacing. The rest? Leave it behind as legend. Any misalignment with canon can be hand-waved off as interpretations that changed, or knowledge that was lost/twisted, or any number of things. You'll want to keep some things true; you'll still want lightsabers, you may want some touchstones like a new Mandalore (though you're free to take that in ANY direction). The rest, let the Republic era be as well-understood as ancient Sumer is today. They know it existed, and that it fell, but if you ask the average joe, they'd struggle to even remember the names of places like Coruscant.
Nor do you have a problem with technological development; not only are you setting this emerging from a "dark age", but the history of the Republic goes back like 30,000 years, canonically. Droid tech's been around that long, and IIRC predates human civilization, at least at the spacefaring level (not a human creation, so that's not a conflict). Star Wars' technology has always been fairly static and unchanging.