Here are a few suggestions, based on what I have read so far in this thread, and based on my 50+ years of starting and running successful startups, and helping others start & run their businesses (
click here for more info on that):
1. If there is any way whatsoever that you can do this without the involvement of an outside investor, then choose that path. The worst thing an entrepreneur can do is to give up royalties, etc. when it is not absolutely necessary. It only causes problems down the road. The amount of money for the building is trivial, and you should be able to save it in short order, or to borrow the money from the bank, friends, or family, without having to give up royalties.
2. If the total amount of money you need is more than you can put together on your own, or by borrowing from bank, family, friends (without giving up royalties), then you will need something IN WRITING to present to investors. This is an absolute. Do not waste time and energy on discussing your ideas without a written business plan. No serious investor will take you seriously. The way you can get help with this (free) is to contact SCORE (the Service Corps of Retired Executives), a service of the Small Business Admnistration. You can also Google for "Business Plan" software and services. The Plan must include all investment required, and the estimated sales, expenses, and payoff.
3. Nowadays, I mentor startup business entrepreneurs as my way of "giving back" or "Paying It Forward". There are almost certainly others like me in your area, and it would be good to seek them out, so you can work with them more easily. Talk with your SCORE office, your bank, and other people in business in your area. You will be surprised at the help you will get if you just ask.
4. Read these "
Ten Commandments of Managing a Young, Growing Business". If it rings a bell with you, send me your mailing address and I'll send you a free poster of this information, suitable for framing. This document contains the Wisdom of the Ages, when it comes to success in business.
Good luck!