Ugh, that's my biggest fear with my venue. As of right now, they don't have anything booked for the night before our wedding, but people have up to three months before to book and our wedding is July 11th. But I built time into my schedule the morning of for set-up (just in case) and my girls and my family will be helping me. As for rehearsal, you may have to do it during the week. Maybe Thursday if you're getting married on a Saturday?
Ours told us when we booked we wouldn’t be able to either, as they often book Friday night weddings. Our venue suggested renting a uhaul or leave one of our cars overnight to hold decor and alcohol so that we don’t have to bring it all the day of, and we hired a coordinator to set everything up for us day of.
I would definitely hire either a day of coordinator or at least a decorator for the big day if you want things to be done properly! I know it can be pricey but you really need a huge chunk of time for yourself to prepare, you deserve a huge chunk of time. Maybe book the rehearsal for Thursday? It might be better off that way anyhow, your wedding party can have an extra night of good sleep before the wedding!
I agree with Kate, having a day of coordinator made our big day so much more enjoyable and relaxed! We actually starting working together several weeks before the wedding where our coordinator took all of the vendor contracts, seating chart/table set up, etc. that I already had and went to work. She confirmed all of our vendors, their arrival times, what they needed for set up, and then built a schedule for them. She also built a timeline for us, the wedding party, and parents to get ready as well based on her conversations with HMU and photographer/videographer. Day of, we didn't even have to worry about any of the set up and could focus on enjoying the day!
If this absolutely won't work, like you said already - you built in a little time to get ready, so now is the time to get organized. Consider who is available and reliable to help with set up (this may be some bridesmaids or your mom who will already be at the venue to get ready). Talk to them in advance, and have a really good plan of 1. what needs to be done and 2. who is doing what for the most efficient use of your time. You could still do a run through of the ceremony before the rehearsal dinner the night before, at a separate location (or if all of your wedding party members are local, talk to your venue about taking an hour to rehearse on Thursday night instead of Friday night). If you choose to do a run through the morning of, you may want to entrust a parent, etc. to hold two separate run throughs one for the girls and one for the guys - typically the girls get there much earlier for HMU, so if you rehearse together then that means by the time the guys get there you'll already almost be ready and FH would see you (if that's not a big deal to you then this is totally a good option too!)
My setup can begin at 6:30 am the morning of. At popular places it's normal. My wedding isn't until 5:30 pm so my coordinator and helpers will have ample time to setup. Won't have to worry about any LED lights for the centerpieces dying too soon.
Is there an events coordinator/manager whom you work closely with at the venue? I had that concern too, so mine will let me know if there are any events scheduled the night before (which your venue already did, so that's awesome lol). If there is, she said that I can leave all the stuff at the venue, show her how I want the decorations done, and she'll do it herself the morning of the wedding. Maybe you can ask! Good luck!
To solve the rehearsal issue: Can you rehearse Thursday? A lot of venues do that because of booking Fridays.
As for set up, I cannot recommend using a day of coordinator more! You will not only be more relaxed on your wedding day, but you will get things done the way you want instead of relying on family/bridal party.