If I ever get married, I want a funeral march for my wedding. Following cage 4'33. And then finish it off with cage prepared piano and a rach sonata.
Or...
If I had an orchestra! I would do Prokofiev second piano concerto!!! Then Verdi's requiem!
Lol the most inappropriate pieces for a wedding.
I like your style

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If I ever get married maybe something like this:
Welcome music: Cochereau select transcriptions
Prelude: Dupré - Symphonie Passion (all of it)
Processional: Messiaen - Dieu parmi nous
Mass: Widor (for two choirs and two organs)
Offertory: Healey Willan - Introduction, Passacaglia and Fugue
Communion: Beethoven - Op 106 or 111
Post Communion: Prokofiev Sonata 7, 3rd Mov
Recessional: Messiaen - Transport de joie
Postlude: Rach 2 (Transcription for organ and piano)