Want to upgrade my ender 3 v2 for TPU. I read from some websites that a direct drive system is good/mandatory. So thinking about getting the official direct drive kit from creality. Do i also need to upgrade the hotend? if so, can anyone provide a good hotend link? preferably from aliexpress? Also please let me know other necessary parts. Note: My system does not have BLtouch or any auto bed leveling system