I converted a standard room to do this. I wouldn't say it had all the furniture I needed. Part of it was something I ordered from a website. It's just furniture, but I didn't sleep on it, like for home and garden. Then I looked at specific equipment suggestions and did the conversion myself. Speaking of kinky furniture, it has slavish and sexual overtones throughout its appearance. With that in mind, everything in your home can become kinky furniture https://www.gardenfurniture.co.uk. Even the same bedside rug - if you keep forcing your partner to kneel for sexual favors, for both of you, your ordinary and unremarkable furniture can become one with sexual overtones.
Check out www.dangerousgoodsmfg.com!! They've got some good stuff and they can also custom build furniture for ya. They also have an instagram account (@dangerousgoodsmfg) so you can check out their work there too