Arara: a fashion store ready to sell in Brazil, with no paid apps (demo store)

Arara is a demo store I built on Shopify for women's fashion in Brazil, in Portuguese and reais. The brand, products and prices are fictional and no orders ship. It's a development store, so it's password protected (password: arara).
Women shopping for clothes in Brazil.
The Challenge
Show the Pix price, the installments, the shipping to the shopper's CEP and her size before checkout, without stacking paid apps.
A Brazilian shopper checks the Pix price and the interest-free installments first, then the shipping to her CEP and whether the size will fit. Most Shopify themes show none of that, so fashion stores in Brazil add four or five paid apps and the store gets slow. Arara is a demo store, so this is the problem it was built for, not a past client's.
Solution
I built a fashion theme in Portuguese and BRL. Every price shows the Pix price and up to 6x interest-free, on the grid, the product page, the look and the cart. The shopper types her CEP and sees the store's real shipping rates and delivery times, and a size finder picks her size from bust, waist and hip.
Pix price and up to 6x interest-free on every price
Shipping rates and delivery times by CEP, on the product page and in the cart
A size finder that reads a size chart the merchant edits in the admin
Photos for each color, and quick add with the size picked on the card
A lookbook that puts a whole look in the bag with one button
Back-in-stock requests for sold-out sizes, and reviews with photos and fit
Result
The shopper sees the price she'll pay, the shipping and her size before checkout. The merchant changes the Pix discount, the installments, the free-shipping amount, the size charts, the looks and the reviews in the admin, with no monthly app fees. Arara is a demo store, so there are no sales figures.