First, welcome Alex!
Pete, iirc the post(s) were really about just making a new handle. I'm not sure what the topics are titled, so I cannot help with the search (or I'm just being lazy). This is a relatively easy woodworking task.
If you like the shape of the previous handle, you can use it for a template, else all you need is a picture of a handle you would rather use ( full side-view picture is best). After that it is just making a template for tracing on the wood. A bandsaw is handy for cutting out the outer shape, but I have used a fretsaw as well. A scroll saw or the fret saw (after drilling a hole in the inner portion) will cut out the inside of the handle if it is a closed handle type you would like.
There are a few tips for cutting the slot for the new blade and marking for the saw bolts, but those are also relatively easy tasks. For isntance, make sure you have a back saw, Japanese saw or another saw that will leave an appropriate kerf. I use the BS with a thin kerf blade for many handles, and a back saw I made specifically for cutting the slots for blades as thin as .020".
If you have any questions, just holler and soneone will help solve the issues.
Take care, Mike