Skip Rehearsal Dinner or Welcome Drinks?

FH and I are running into a timing problem. Our church rehearsal is from 6 - 7 p.m. and our thought was to have a formal sit down dinner with immediate family and the bridal party (totaling 13 people) and then host a welcome drinks and appetizers for our OOT guests (which equate to 95% of our guest list). If we do both, I think dinner would take an hour and a half and welcome drinks could take two hours (per event space rental agreements). Would it be too late to host welcome drinks from 8:30 - 10:30 or 9 - 11 the night before a wedding? We are worried we won't have enough time for both and I don't think many people want to snack on appetizers at 9 p.m. What do you think? Should we attempt to cram it in or skip one of the two post-rehearsal events?