The answer to your question is YES

But before I continue to think about this beautiful concept,
Maybe I should check out why cars in the 90's and 80's are no longer circulating in Japan!

I personally am of the believe that you can create a market for anything, anywhere, at anytime. Japan has beautiful, outdoor attractions, and camping, which can entice tourists from around the world. Many of these tourists will need to rent cars, which is where you come in to fill in this potential gap in Japans tourist market.

I actually think this is a really great idea! Especially combiing the 90's style and outdoor themes, I think this works very well for your branding. Also, providing free camping, bikes, and fishing goods is an incredible idea for your marketing.

I'd really love to here more about this and help you in any way I can, mostly because I think it's a great idea. I can confidently say that I could give you many extensive strategies to set up, market, advertise and scale this business.

Feel free to message me if you'd like to know a little more about how I could help with your business. I have lots of ideas.

Thanks,
Jake

I dont have much to say about your land cruisers and bikes, but one thing I can touch on is the insane demand for JDM (Japanese Domestic Market) cars for rent such as the Toyota Supra, and Nissan Skyline. A substantial portion of Japanese tourists are there for the car culture.