Not to be argumentative here, but if a DIY'er has been doing it RIGHT and doing it a LONG TIME, the only thing that separates him/her from the professional is that we are not getting paid to do it. For the most part, weren't the "professionals" at one point in time a DIY'er?
Case in point: My dad, in his prime, could fix/work on a firearm as well as any qualified gunsmith. He did it as a hobby. He was not only good at it, he was DAMN GOOD at it. I 've seen him make parts (firing pins, extractors, etc.) from scrap metal using only a grinder, files, and sandpaper/honing stones. I've seen the days when he cut walnut from trees on his East Texas property, form blanks, let them dry for a few years, then masterfully cut/shape/inlet the wood into beautiful rifle stocks. Made quite a few for me. Saved me LOTS of money on gun repair too. I never had to take my guns in to a "professional" to have them worked on. He never made one single dime for all his wonderful work. He was a DIY'er whose work was as good as many of the so-called "professionals" in that field!
Now Kevin, cue repairmen are like "guitar players in Texas". They're a-dime-a-dozen. Don't sit so tall in your "high-horse" to think that a DIY'er cannot be up to the task. Inlaying, joint installing, etc. needs a true expert, but tip installation and shaft polishing are really simple procedures that most anyone can accomplish without paying a "professional" to do them.
DIY's have knowledge too!!!
Maniac