Custom headless? Welcome to my world. I think Kiesel is the only option within your price range. And they come with an issue. You can get them to build anything you want (that can go WELL over 2k, hell, it can go over 5k) but unless you get one of the Vader/Osiris/Zeus headless models using JUST the options on their online "Bass Builder" tool (there are a lot of them) you can't return it even if you hate it. And I've played some recent basses out in their showroom that were really awesome, and a couple that were really not, so you want that 10-day trial/return option.
Because they do have a track record of making occasional duds, I would not get something from them I could not return.
Call them. The phone sales guys have been super-helpful with me (they may be a bit pressed for time this time of year, so have your questions ready and use their time wisely). If you tell 'em up front that you want a bass you can return if you don't like it, they'll be able to help with that.