Create product page with personalization options and preview

Hi guys, I am planning to start a new project with custom neon lights. The store with home page is already built. But the most important thing is missing, the product page where customers can personalize their neon sign by themselves. I found here a store how I imagine it: [login to view URL] My store theme color is on black, but the product pages should have a white background and of course with black font. The option that are to be set, I give you. If you look at the store linked above, you can see that the more letters you write in the field, the price increases automatically. The prices of course I give. But I want the price to increase automatically when more letters are entered. The customer should be able to see a preview on the product page, 4 backgrounds should be available (two white, two dark). The rest of the settings should not be difficult. I only ask for contact if you are 100% sure that you can do it. If you already have similar projects with Personalized Product Pages, feel free to send them as reference. Thanks and best regards Santiago