I agree with Philly. But I'm also wondering, won't the luthier know what's needed?
eg. If I was going to do this, and Jonathan would be my luthier, I'd go "while you're at it, stick one of they Earvana thingummies on it... how much does that add to the cost?" :D
I'd expect him to worry about the technical details about what the specific guitar would need, and only defer decisions such as "luxury model" or "standard model" (if such a thing exists in this case) to me.
I'm probably missing something fundamental though, like you feel happier buying the bits first :lol: