If You've Got That Much.....
The notion of having a custom cue sounds appealing but when all is said and done, if you go to sell your cue you'll probably realize a loss since appreciation is tough nowadays in the resale market.
Speaking personally, if you're making the leap into a higher end cue, I'd look around at the cues made by some legendary cue-makers that you can score in your price range. Heck, even Black Boar cues have sold for as little as $3k and right now, there's a gorgeous Ed Prewitt cue going for only $4100. In this market, there are Paul Mottey cues that can be scored for $2500, in addition to cue-makers like Tim Scruggs, Bill Stroud, Verl Horn, Richard Black, Bill Schick cues.......and many of these cues are 1 of 1 cues.
OMG.....I don't care which contemporary cue-maker you might have in mind.........are their cues truly, and let's be honest, in the same league as Mottey, Scruggs, Black, Stroud, Horn, Shick, etc. Anything you buy from one of these esteemed cue-makers has significant opportunity to appreciate and your likelihood of losing any money on a sale would be slight as long as you take care of your cue.
So if it were me, I'd take the time to own a cue from one of the greats rather than a cue from a contemporary cue-maker.........the re-sale market remains horribly weak and so there's enormous deals to be had on those cue-makers I mentioned. But you have to be actively looking and be ready to act fast when the opportunity arises. You can't take a couple of days to think it over. See the right cue, make an offer and negotiate from there for a fast close. Trust me, the seller will appreciate your straightforward demeanor and be sure to be candid at all times with the seller.
In any event, I realize to each their own and maybe you just have something different in mind than my taste in cues. Good luck with ordering your cue or perhaps buying a previously owned one. But keep in mind the only wait on buying a used cue is the length of time it takes to find one you like. The cue could be in your hands in a few days or a month from now........GL.