The Harmon Kardon that you listed is from a time when most most turntables had mediocre sound, and it created an environment in which CDs (which started out with bad sound, but have improved a lot) were able to thrive.
The Garrard TT with SME tonearm and Koetsu cartridge is worth considering. Turntables have improved a lot over the years, but Garrard made quality TTs. Likewise SME tonearms are good quality. Koetsu cartridges are handmade high-end cartridges with a magic sound. This one is local pick-up only. The seller has low feedback, but it's due to one buyer with a questionable history. I would want to listen to this carefully before I purchased it, but it might be a good buy.
This being said, you can get a VPI Prime Scout TT from Upscale Audio for under $4,000, and you can add a discounted cartridge for between $345 and $2125. VPI makes very good turntables for the money. The cartridges that they offer on discount are from Ortofon and Hana, and they are good cartridges. I bought a VPI TNT III in the late 1990's, and it's still wonderful. You won't have anything to worry about if you get a VPI.