From here we can begin building a design brief factoring in all the answers you've told us and together expanding on further details to create a document that can be referred to going forward. Think of this as the document with all the details from location and space to design elements and features.
Then, using the brief we can begin our initial design & review process. This is your chance to see your vision come to life and let us know what you think. You never know we might smash it out of the park, but if not then we will work collaboratively to achieve the best results. When you're happy to sign off on the design, onto the next step - installation.
No doubt, you will have been thinking about the budget throughout this whole process, we know this is a big investment, and there are usually options available. We've got some useful information on funding and fundraising which you may find helpful.