A $60,000, 3.6-carat Neil Lane diamond engagement ring. A $25,000 weeklong getaway at Barcelona‘s luxe Iberostar Paseo de Gracia hotel. More than 1 million Instagram followers between them, worth millions in ad dollars. Those are just some of the perks Arie Luyendyk Jr. and Lauren Burnham have enjoyed since he proposed on The Bachelor: After the Final Rose special in March, says a Bachelor insider: “They’re getting everything for free!” And now the pair are aiming to score their biggest freebie yet: a $1 million TV wedding.

“Arie and Lauren would gladly accept a free wedding and film it for TV,” says a source close to Lauren, noting that the former tech salesperson, 26, could never afford such an extravagant affair on her own. So with the big day fast approaching — the pair tells In Touch they’d like to exchange vows in August or September — they’re already fielding offers from dress designers and talking about how to get their guests free trips to an exotic destination, meaning the budget could easily balloon to seven figures. “A million-dollar wedding would be way more than Lauren’s ever dreamed of,” says the source, “but if ABC were to pay for it, she’d be in!”

The biggest expense would likely be the location. “We might do a destination wedding,” the former race car driver, 36, told In Touch at IndyCar’s Firestone Grand Prix in St. Petersburg, FL. “It kind of depends if the show is involved or if we’re going to do it on our own.” That’s because they’ve got loved ones all over the world. “They know how expensive it would be to fly their family and friends,” says the source, adding that Lauren is also hoping her pastor from Virginia Beach, VA, will be able to marry them. “A lot of relatives wouldn’t be able to go if it was on their own dime. That would be a big incentive for Lauren to agree to do a TV wedding so she could fly everyone out and not have to pay for it.”

And Lauren wants “a big wedding,” says the source, so even if they spend just a couple thousand dollars to transport and put up each guest, the travel bill alone could easily exceed half a million dollars. Among those guests? Likely most of Bachelor Nation. (Minus new Bachelorette Becca Kufrin: Arie has said his ex-fiancée, whom he dumped on camera, won’t be invited!) They might even go after top-notch entertainment for the reception. “If they could have a famous singer there, they would love to have someone like Ed Sheeran,” says the source. (They’d have to budget an extra $1.5 million to book the A-lister.)

The gown also will have a big price tag. “Designers have already contacted Lauren wanting to design her wedding dress,” says the source. “Two of them contacted her even before the finale aired and she said she’d have to wait until she gets settled.” If she chooses a separate gown for the reception, the total dress price tag could be $50,000. As for her jewels? When Bachelor alum Jade Roper got married on ABC, she was dripping in $250,000 in diamonds! (She and Tanner Tolbert also exchanged platinum Neil Lane wedding bands.)

The honeymoon will likely be free, like their $25K trip to Barcelona. “They already have more invitations [for travel getaways] than they can deal with,” says the insider. Adds the source: “They’ll just pick the one they like the most. They look forward to exploring the world together, and of course, if there’s anyone offering it for free, they’d go.” They’re getting used to the luxe life. The source says Lauren lost her job because she was away for filming, so she’s also ready to start promoting products for money on social media. “You’ll start seeing them do different campaigns,” agrees the insider. “They’re really milking it!”