Phil is not a professional tech, but he could be.
I studied with Stephen Delft in the early 70's and have been working on my own guitars since then. I was the guitar tech at JSG in Bingley until 1976. I've never built a guitar from the wood, like Wez, Jonathan and others here, however I have assembled at least 30 guitars from parts (including neck shaping and spraying). I also can do fret jobs and have cut many nuts. I have a full set of tools for this, because it makes life so much easier.
Wiring is probably one of the things I do most. Ben always has different ideas to the way the guitar was originally wired, and I like to have interesting wiring too. I managed to get a ton of NOS paper in oil Ukranian .022 & .047 mf capacitors a while back for chump change, so keep using them if I'm left to my own devices. BK have some good stuff, and I've been using their pots over the last year along with some of their pio caps too.
I have a real full time job, which more recently has been taking up a lot of my time, but this week have worked on one of Ben's guitars, given my Bravewood 56 Strat a neck tweak and trimmed off a little bit of one tang that was starting to be a bit proud. I'm also going to set up my 74 Les Paul 55 Special, though it is probably getting a set of Nantuckets on it soon.
Through the years I've modded or built Ben about 5 or 6 guitars, made his bass player's bass and made myself lots from Warmoth and other parts.
With Warmoth necks you will need to finish the fret edges, they come cut square. I use a Stew Mac diamond file, but you can do it with a small file, it just takes longer. Everything else on them is easy.