I did look this one up and found a thread from 2 years ago about it, but I just wanted to make sure that basically my easiest option is to take the wheel in question to a shop for them to put new cone washers on, plus a new axle??

Is there a way for me to measure the sizes of washers and hollow axle I need and order everything online? or is this probably too much work for someone just starting out with bike wrenching?