How much do you want to spend? What kind of sound are you looking for?
You can upgrade your KG2 to KG3.2's on the cheep also there are a ton of upgrades for these speakers that make a huge difference.
While the T1 is a ok TT, there are also upgrades for that, really you don't want anything with a built in phono, there are a lot of low cost good phone pre's out there. You can also "upgrade" to a Carbon Debut Evo, but not sure how much of a real upgrade it is. Best bang for the buck there would be to upgrade the cartridge. What do you have now? My first TT was the Debut Evo, once I upgraded the needle it made a huge difference. I have the Suimko Rainier cartridge, a simple needle swap to the Olympia needle, was so worth the cost. After a while decided I needed a quieter and more robust TT, so upgraded to X2, so happy with that.
Blue Jeans cables are great, don't let anyone else tell you otherwise. And upgrade would be to get their speaker cables as well.
Not sure where you live, but Craigslist and Facebook Marketplace are great places to pick up good used gear. I see good TT's, phono stages, a ton of Klipsch speakers.