Help me find an outfit please!

[Sonolanona]

I have a wedding in May..up North.
I never wear dresses (I'm a dog walking , allotment digging, child chasing (work and grandkids) woman so want something trouser based.
The wedding itself has a gothic theme but we aren't obliged, but probably nothing flowery! I'm a size 10 , 5 ft 7 and have shoulder length hair that is mostly grey/silver streaked.
I'm thinking some sort of wide (ISH) leg trousers and maybe waistcoat type outfit but have no idea where to look, or colours or anything! I live in jeans or Uniqlo leggings and tops!
Any ideas gratefully received!

https://www.coastfashion.com/product/klass-sleeveless-applique-shimmer-dress_p-42befacf-4314-4fdb-a728-c2a45128e01c?colour=Black&size=12

Size up in Coast!

https://www.coastfashion.com/product/coast-feather-off-shoulder-jumpsuit_bcc09397?colour=black

www.coastfashion.com/product/coast-crepe-wrap-jumpsuit_bcc09544?colour=navy

How about red www.coastfashion.com/product/coast-slink-jersey-pleated-jumpsuit_bcc09008?colour=berry

https://www.sezane.com/en-en/product/damon-trousers/midnight-blue-jacquard?CHEQ&utm_source=Google&utm_medium=cpc&utm_campaign=Hors_Marque&utm_content=&utm_term=&gad_source=1&gbraid=0AAAAADROyDIidJNaLSEpwscPb4RLE_yQ7&gclid=EAIaIQobChMI39_Wl8e_jAMVN4BQBh17CyKXEAQYAyABEgK7nfD_BwE#size-4

https://www.karenmillen.com/amelia-graham-printed-viscose-satin-hight-waist-trouser/BKK23504-572-18.html?gclsrc=aw.ds&gad_source=1&gbraid=0AAAAACo7BY-8S0vHbJjWRF2EsblhqlBcJ&gclid=EAIaIQobChMI39_Wl8e_jAMVN4BQBh17CyKXEAQYBSABEgIP-fD_BwE if it’s gothic themed this could work

https://www.phase-eight.com/product/alli-gold-textured-jumpsuit-22250406012.html?istCompanyId=c38fe7a0-ffd0-4925-94b3-cff8df449484&istFeedId=5a41320b-c741-4d1e-b90d-1091450d147c&istItemId=qtwwwrpxw&istBid=t&cq_src=google_ads&cq_cmp=21744775086&cq_net=x&cq_plt=gp&utm_source=google&utm_medium=cpc&utm_campaign=21744775086&gad_source=1&gbraid=0AAAAADumyC_HE4P5LHf1RmMINZIKJR7Ld&gclid=EAIaIQobChMIooDo3ce_jAMVqoBQBh2a6TP3EAQYCiABEgLmw_D_BwE

https://tallulahandhope.com/products/tessa-short-sleeve-wrap-jumpsuit-bemberg-black-embroidered?variant=54941664903548&country=GB&currency=GBP&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&gad_source=1&gbraid=0AAAAApU1_eRRpP-elsqiYpQFTmrC95GbX&gclid=EAIaIQobChMIsoD4pci_jAMVrpNQBh2eywXVEAQYJSABEgLZ9vD_BwE

https://www.johnlewis.com/raishma-blake-wrap-jumpsuit-green/p112124969?size=8&s_ppc=2dx_mixed_fashion_BAU&tmad=c&tmcampid=2&gclsrc=aw.ds&gad_source=1&gbraid=0AAAAAD2el1wNkBzd3l_93HcmkaSa85n6x&gclid=EAIaIQobChMIsoD4pci_jAMVrpNQBh2eywXVEAQYJiABEgIBBPD_BwE

https://4thandreckless.com/products/black-asymmetric-gold-button-front-waistcoat-brie?queryid=c1c39a29e40c0a73f7e89826a26b37b1 Sorry went a bit mad! I love a chance to browse nice outfits :)

Expensive but lots of other shops have similar styles - M and S for one. https://www.meandem.com/lightweight-tailored-waistcoat-boyfriend-trouser-suit-mint-sorbet

I've noticed Seasalt have started doing some occasion wear, including coordinating linen waistcoats, trousers and jackets. Would something like that be up your street?

www.seasaltcornwall.com/womens-erica-linen-blend-waistcoat

https://www.wallis.co.uk/product/warehouse-satin-batwing-wide-leg-jumpsuit_bww07186?colour=red

You are all wonderful... There are some real possibilities, thank you!
I'm now going to have a proper look at them all :)