True. And marriage-prep of some kind is usually a Diocesan requirement.
However, after that, the only real logistic issue for a Catholic wedding is that it has to be in a Catholic Church and include witnesses. If you've got a priest or deacon, the couple getting married, and the secretary and the custodian in a corner of the sanctuary, it's legit.
Wife and I got married by a judge in the courthouse. Cost - zip. Longevity - 45 years and counting.