Hi. I have a UM2. I want to upgrade to UM2+. I can’t quite afford the expensive official upgrade kit , but I can see the parts are available individually for a fraction of the price online.   My question is.. Is it possible to Upgrade one part at a time? I’m tempted to start with the motor & feeder and then save up a little more and then later in the year depending on affordability maybe upgrade the head and shafts.  Eventually I,ll get the least important stuff like the spool holder