Shopify Theme Customization

I am looking for a freelancer to customize my Shopify theme. The specific changes I need are related to functionality and features. I have specific features in mind that I want to add and I know exactly what I want. In terms of design, I have specific references for websites or themes that I like the features of. Ideal skills and experience for this job include: - Extensive experience in Shopify theme customization - Strong understanding of Shopify's functionality and features - Ability to implement custom features based on client's specific requirements - Familiarity with HTML, CSS, and JavaScript for customizing the theme's design and layout We are using the Icon theme currently. First up, custom brand landing pages: - We have several brands which we are wanting customizable sub themes for. As an example, say each brand is Nike, Adidas, Under Armour. When you have a small menu with the brands and see the names, you click on one and it loads their landing page. Their landing page contains collections specific to their brand. Our company is the primary branding, but the landing page for each has their logo, branding, menu, and colors on the pages only associated with their name. These can all have the exact same layout, so long as the logo, branding, and colors are easily customizable. The key here is having this work and be fairly easy to configure for each new shop brand. Also, need the ability to easily move this to an updated version of the theme when that comes out. Example: [login to view URL] - Kids/Sirens/Forever21 are their own 'brand'. Another example that is not shopify but has similar functionality, is [login to view URL] If you click on Rebel Athletic or Rebel against bullying, it stays on the same CMS but different 'brands'. Second, we want certain 'brands' items to be available for local pickup. The can be based on collection or brand or whatever works, just not available for all brands. If a shopper picks local pickup for an order, we need them to fill out required fields. This needs to happen no matter if they add to cart and checkout, or use express checkout. The fields are, 'Athlete Name' and 'Team Name'. Optionally, they can select 'NA' for team name but would be required to put the Athlete Name. - Additionally, these all of these fields need to be able to be reported on. We had someone develop a similar setup previously, but they no longer support their own work. So we are also looking for someone that can guarantee to support their work for a long time. Budget is negotiable. Please provide an estimate budget and timeframe. We are looking to implement this ASAP.