Gift bundles for life-cycle ceremonies (Baptism / Bar Mitzvah / Quinceañera), how do you build them?

Magento bundle products with required and optional components, engraving fees, dated-delivery promise, and a printable certificate add-on. Average order value on bundle SKUs runs 3-5x line-item AOV in the data I see across shipped stores.

• Baptism (Christian): baptismal gown + cross necklace + Bible (often KJV or NIV) + certificate frame + candle. Engraving on the cross is the high-margin add-on.
• First Communion (Catholic): rosary + missal + veil + tie + Bible. Often gifted by godparents, so include a gift-message field at checkout.
• Bar / Bat Mitzvah (Jewish): tallit + tefillin (Bar Mitzvah only) + kiddush cup + engraved siddur + tallit bag. The engraved siddur with Hebrew name is the high-touch piece.
• Quinceañera (Catholic Latina): rosary + Bible + tiara + medal + Bible-stand. Spanish-language Bible (Reina-Valera 1960) is the default.
• Hindu Upanayana / Thread Ceremony: janeu (sacred thread) + Bhagavad Gita + puja kit (kalash, diya, agarbatti) + sandalwood mala.
• Sikh Amrit (initiation): kara (steel bracelet) + kirpan (ceremonial sword, where legal) + gutka (prayer book) + kanga (comb).

Each bundle SKU configures required + optional components in the Magento admin, with engraving as a custom-option text field and dated-delivery enforced at the bundle level, not per-line. Inventory of components is shared with the standalone SKUs, one tallit, two SKU contexts.