I've got a TD125 MK II that I've owned since 1977 or so. Back then we both were NIB. The spring suspension is a pain in the rear to adjust but patience wins out. Leveling is 75 percent accomplished if you handle the suspension properly. But the devil is in the details. The condition and adjustment of the tonearm and cartridge are key to sound and preservation of the LP's. My advice is to buy up all the pristine LP's you can afford and wait to play them until you can get a better turntable. You can spend lots of time and money on that Thornes. But, here's a link to help you out just in case you decide to ignore my sage advice! ;-)
http://www.turntablebasics.com/index.html
http://www.turntablebasics.com/index.html