I would like to exchange a 2 bedroom unit at the Welk Resort Villas for a specific week at the Marriott Grande Ocean in 2027

I can make a reservation anytime in 2027 at my home resort of Hyatt Vacation Club Welk Resort Villas, 21 months out, summers are the busiest. I want an exchange into the Marriott Grande Ocean, week 39, September 24 - October 1, 2027. It has to be this specific week but I would be interested in one of the other Marriott resorts in Hilton Head, one that is also on the beach. I am also willing to pay $400 extra to match the maintenance fees of the Grande Ocean. I have an exchange request at Interval for this week and the fee to exchange is $249 so I would rather deal with a Marriott owner.