Sofia Vergara "could not be happier" about marrying Joe Manganiello today (22.11.15).

Sofia Vergara

Sofia Vergara

The couple, who got engaged last December after a whirlwind six-month romance, are ready to become husband and wife at the Breakers hotel in Palm Beach, Florida, after splashing out more than $500,000 on the dream wedding.

A source said: "For her, it's all about her and Joe as a couple. They are both eager to start the next phase of life together, and Sofia couldn't be happier."

The 'Modern Family' actress is planning to wear a "mermaid-style dress to show off her curves," while their 400 guests will dine on a combination of American and Colombian food at their lavish reception, which will be decorated with tons of orchids.

The insider told In Touch magazine: "It's all about creating memories. [It] easily cost more than half a million dollars."

Sofia, 43, previously claimed she was being a bridezilla ahead of their special day.

She said: "I am very detail-oriented so I am kind of like a nightmare. I have a very good memory.

"If you show me swatches of things, I can in two months exactly remember, 'What happened with the one with the little border that had the little print?' I'm like, really bad."