Install 2 WordPress templates, and build 1 simple landing page

I have three domains that I would like to gradually build into full websites. But first, I only want the WordPress templates uploaded and made to look like the demos. I have purchased WordPress templates for the first two sites that I would like installed to look as close to the demos as possible. The third is a simple landing page with logo and inquiries button. They are listed below: 1) Single lawyer office website - using this WordPress template: [login to view URL] I want to install the template as close as possible to the demo shown. You can use free, generic images as placeholders until I upload actual images and content. I will probably limit the number of pages and menu options to make it a much simpler site. 2) Blog website - using the WordPress template seen here: [login to view URL] Again, initially I want the site to look as close to the demo as possible (using generic placeholder images). I will modify and add images and content later. 3) I want a very simple page put up for a future tech/crypto company. I have a logo that I want placed prominently in the center of the page with a background color/image that matches the logo. Below the graphic I want an "Inquiries" button or boxes that will send to an e-mail address I will provide. Very simple. Basically a placeholder page until the idea/company is developed and the whitepaper is finished. I have registered the domains and use hosting through [login to view URL] I will provide FTP login info so the developer can modify and upload the files there. If the developer does a good job, I will likely hire them for tasks related to modifying the sites and making them complete, as well as working on future sites either on an hourly or per project basis. Thank you!