Madara Child Theme Customization

I already have the Madara parent theme installed and running on my site https://novelbyu.com/
. Since I don’t want updates to overwrite my changes, I need two custom child themes built on top of Madara — and they must include a powerful Theme Options Dashboard inside WordPress Admin.

The two child themes I need:

A child theme styled after https://fenrirealm.com/

A child theme based on my own design here: https://preview--kodelex-v2-06384-25069.lovable.app/

Core requirements:

Full child-theme framework inheriting all Madara features (novel upload, chapter reader, user system, etc.).

Tweak templates (chapter lists, reader pages, navigation, archive pages) to match the designs.

Responsive, mobile-first, clean CSS.

Performance optimization: lazy-loading images, trimming unused assets, deferring scripts, caching improvements.

Deliver a ready-to-install package with installation notes.

Theme Options Dashboard (must-have):

Control colors, typography, and layouts.

Manage sliders (number of items, show/hide sections like Popular, Latest, Blog, Feed, Trending).

Reader options (chapter list view, pagination, navigation style).

Ads & SEO fields (Google AdSense, header/footer scripts, OpenGraph, metadata).

On/off toggles for features (dark mode, lazy load, sticky header, etc.).

Custom CSS/JS editor.

Translation / text replacement fields.

Backup/restore: export, import, reset by section or full reset.

Budget: Around $50–$150 for each child theme.
➡️ Any bid above $150 will be automatically rejected without being read.

Goal: I want this to be a future-proof theme I can rely on for the next 5 years — flexible, easy to customize, and fast.