WordPress Blog Setup on Shopify Subdirectory

Requirement:
(1) ABC.com = shopify site
(2) I want to use wordpress on ABC.com/blog
(3) I have a hostinger.com account to handle the wordpress site


Current Setup:
(1) Domain name DNS managed by Cloudflare;
(2) Domain DNS pointed to Shopfiy Server
(3) I need to setup Wordpress on sub-directoy (do not suggest me to use subdomain)

Key Requirements:
- Set up the Wordpress blog correctly on the Shopify platform.
- Ensure the blog is in a sub-directory of the Shopify site.

Skills and Experience:
- Extensive experience with WordPress and Shopify.
- Previous work setting up WordPress on Shopify is preferred.
- Knowledge of SEO and site structure is a plus.

Need a quote and you need to be able to explain to me briefly of your method.

Cloudflare workout does not work, since Shopify use a reserved IP address, proxied DNS through cloudfare not possible.