Have you looked at a points chart to see how many points you most probably will need?
https://www.wdwinfo.com/disney-vacation-club/riviera-points.htm
Do you know what a use year is?
https://www.disboards.com/threads/understanding-use-year-updated-march-10-2019.1942668/
Are you aware of the resale restrictions on Riviera contracts and how that may affect the value of your contract should you need to sell? Or how it may affect your ability to book your home resort years from now?
Have you looked at the resale market? Or considered a direct purchase at one of the other DVC resorts?
Are you aware of what the annual maintenance fees are on 325 points and that they will undoubtedly increase each year?
If you’ve done your homework and know what you’re getting into, then Welcome Home. Otherwise, study up and consider postponing that purchase until you’ve read these boards...a lot.