Hi all. Long time lurker, and just joined forum. I am about to purchase a Thorens TD-150MK2 that is in good condition and have a few questions regarding basic cleaning, cartridge/stylus, and minor upgrades. I do not have a desire to make any major modifications to the TT, but I do want to try an ensure the best sound possible while keeping my orginal TP 13A tone arm. I read this thread: Thorens TD150 MKII Vs modern entry level TT and saw that better isolation feet and rca jacks would likely be good upgrades and also saw that Dr. J spoke highly of the AT125 cartridge. My questions are as follows: 1. Would an upgrade such as a new plinth be worth the cost and does it take away too much from the pure originality of the TT? I would be perfectly happy just re-enforcing the original plinth and adding new veneer if that is acceptable. 2. Would you change the isolation feet and rca jacks? If so, which would you suggest? 3. I know that this has been discussed ad nauseam, but which cartridge would you suggest for the orginal TP 13A? (FYI - presently, the turntable will be run through a Yamaha CR-840 to Vienna Acoustics Schonberg speakers). 4. Is there a substantial advantage to changing the tonearm head? 5. Is a record stabilizer a good idea, or with it add too much weight? 6. Do you have any other suggestions? Glad to be here, and thanks in advance for any input.