Yay so I looked at the old handle thinking I can maybe just try to fix it and I managed to fix it, so I just installed it back. Nothing was really broken, it was just a pin for a spring that worked itself loose so the thumb lever or whatever you would call it would get stuck sideways and not fully retract the latch, popped it back in place and now it works! Now hopefully HD will accept this return even if it's open. That was like a $100+ door handle too.
Still bummed out about my drill bit set though. No idea where that ended up. They don't make em like that anymore. Now it's all some kind of powder iron or ceramic BS. Breaks at pretty much anything that is slightly harder than pine. The "better" ones are very short so can't drill through even a 2x4.