Paris Hilton’s wedding dress and bridesmaids revealed

Paris Hilton — who, as Page Six just reported, changed her wedding venue at the last minute — seems to be making some other decisions precariously close to her wedding date next Thursday.

A source tells us the bride is still mulling whether to don a Valentino or Oscar de La Renta gown. She was spotted this week stopping by the Valentino store in New York with her sister Nicki Hilton, but a source tells us Oscar is also in the running.

Fortunately, some things are nailed down. The bridesmaids, who we hear are all family members, will be wearing custom pink designs from Alice + Olivia, a favorite of both the reality star and her sister Nicki, a source tells Page Six.

We hear that while Nicki will be the matron of honor, bridesmaids will include groom Carter Reum’s sister Halle Hammond, Tessa, the wife of Paris’ brother Barron, Kim Richard’s daughter Whitney Davis, and Kyle Richards’ daughter Farrah Aldjufrie.

A source previously told Page Six the event will last three nights, with the wedding taking place at her late grandfather Barron’s Bel-Air estate.

“It changed about a week or so ago. It’s changed several times,” a source told us. “Originally, they were going to get married in the church, but they switched it about a week or so ago.”

We hear that the second evening will be a carnival taking place on the Santa Monica Pier, and the third night, Saturday, will be a black-tie bash.

We’re also told the Saturday event is causing some chaos for certain guests, with Kardashian pal Simon Huck getting married in LA the same night. “People are having to divide and conquer,” says the source.

Paris and venture capitalist Reum got engaged in February after dating for a year. Their wedding registry has over $60,000 worth of merchandise listed, including a $500 Hermés platter, a $985 Christofle party tray and a $1,000 crystal caviar server with a spoon.