Right, I buy most of my general repair/maintenance items there. I just need to know what to buy, best method, etc. Are you saying I should call and ask their advice, or...?
I still consider myself a beginner and trial and error is what I did.
First I went to you tube and saw projects and would hear of different methods like nitro finish, lacquer, poly, French polish, and removal methods like sanding, heat, or chemical, and methods for spraying and drying. There are a few methods that may get you there.
Secondly, I then go to hardware store and see what's there, and if not (like getting frets, nuts, or very specific finish, there's the Stew Mac site. Also Allparts and retroparts are nice, and considering non-guitar sites also helps.
I did a French polish violin finish from violin site I came across and also talked to a professional cabinet maker about nitro finishes versus water based poly finishes, both of which he liked.
Thirdly, what do I say?
1) Sand original finish, however long that takes and spread it out over several days
2) seal with French polish several coats, go water based poly several coats, then finish with French polish (I did this but got maybe a semi-gloss/matte that may be too shiny for your project)
3) But if you are brave, make spray tent (consult online) and go with nitro but keep safety in mind. Use very careful sanding regimen to make any glossiness go away to get that nice matte finish. This isn't easy and Gibson often flubs up their own matte nitro finishes, but probably more due to extreme demand for high production
Above all, patience is key and don't expect to get the first project perfect. It just doesn't happen that way and if it does, you may have a career.
Realize nitro or French polish don't hold up well but do get a rustic look as it ages and acquires small scratches. If you decide to go nitro, know that it can be dangerous and find a person who knows this process really well. The Ibanez project looks simple from the photograph but you will find that without a dedicated spray room and heavy sanding equipment, it's a slow process.
I love that fretboard. I don't know if he removed 12th fret and inlaid different color wood or if he somehow bleached or refinished it. Of course that would take removing two frets if he inlaid wood just on that fret. If I had the skill, I would love to throw down a maple board on a LP or SG type guitar (blanks are sold for this).