I believe two very different products are discussed here. One is a drinking/eating trough with music playing, when I was growing up these locales played vinyl and tape including cassettes and later switched over to digital now they're sticking a turntable or R2R in a visible location mostly as a gimmick. This is the anthesis of the true Japanese Kissaten or Music Bar where it's all about an intimate and unique experience created by the owners. As @Solypsa mentioned it's a labor of love and passion for a hobby and not solely a commercial enterprise. Everything from the music to the sound down to the soap in the bathroom and everything in between is curated by the owner and part of the experience. You're there to share someone's life and passion. The owners are usually always there behind the bar serving their favorite beverages and foods and are happy to talk about and share their love of this music. The drinks aren't just served in any old glass, they're individual and what he puts in your hand is what he will enjoy looking at and drinking from. It's an exceptionally intimate personal experience in a semi public venue, very much like visiting a dear friend with an interesting system with very good music who's also a great host, you share his home, his music, his company and part of his soul for a moment. The true Japanese Music Bar is about the Owner, it's very Japanese in nature and extends to other forms of hospitality rarely if ever seen outside of Japan. The only times I've come across it in the West was in form of a small full pension bed & breakfast in parts of Germany or South of France where the owners have a passion for cooking and are really sharing their home and culture with you. Mystery booze dispensing machines and a random person playing music, vinyl or otherwise is not the same as sharing a soul with kindred spirits, no pun intended.Three emails, volunteered the use of myself, my records and my £75,000 system, but no response.
I'm not trying to offend just being honest here, your system is dear to you but it's not suited for a commercial venue and frankly not unique in a way to attract hardcore audiophiles to the space, a very similar system can be put together for a lot less than 75k by most people. In your scenario are you really prepared to put your 75k system in the hands of random employees in a hectic messy environment? I know nothing about the value of your LPs but they're at high risk too. If this is really what you'd like to do maybe you should look into doing it by yourself and starting small and intimate and see where it leads.