Also most of the good designers are very small businesses so they are busy (because they are good) and their business is not scalable so you have to wait a while. 

In my opinion, this method appears impractical for scalability.

I can send you a sample linkFREE - Also built my own mileage tracker in Google Sheets, easy mobile phone access through the app$$$$ - For a scalable property management model we chose AppFolio which pretty much does everythingEven though we are using some expensive high-falootin PM software, our go to is Google Drive sheets for mostly everything.

I am wondering if this way of doing things is scalable to more than 10.