I've used a lot of local craftsmen for various projects, from just the usualy things to odd things for odd reasons.
99% of them dont really care the reason for the project, but they do care that they can do a good job on the projects and will require the specific needs and wants.
Myself i dont have an AB furniture, but have had made some kink stuff through the years by locals.
Really comes down to just talking to them and bringing them the project.
be up front.
Just ask if they are adverse to making any adult furniture or kink furniture. Most wont have an issue, and if they do that is vague enough to not worry about anything.
But you will get the best product and maybe even better than you can think of if you bring the concept to them and then both work on it.
They are the expert in the building and medium (wood, metal, plastic, etc) and they will know more things that will work and can be used than you will think of.
So, saying you want an adult sized crib based on this photo, and that you want the drop side, or the side to go up, and an enclosed top and that it be sturdy enough to keep you in it and secure enough for that as well, they will work with you to get thoes goals figured out and get the best product they can get you.
They will also know of things that are off the shelf you can get that are more cost effective than building something. Example is i wanted a built in pizza oven and deep fryer and the cabinet guy came up with this cool mechanisim that would take the door and literally have it swing/out and slide up on an arm that will stay in any position you leave it, from closed (looks like a regualt cabinet face) to well over the top of the whole area allowinf easy access to the deices wihout any door in the way as it's above the whole area (goes up feet). Something i'd nevr even seen before.
So, work with them openly and you will get a superb product or at least the best that the craftsman can do for you.