Yes, that timing works well for me, and I think keeping the plan simple will make the day easier.
If you want, I can arrive a little earlier to help set things up and make sure everything is ready before everyone gets there.
I also think it would help to confirm the address and parking details again, since a few people may be coming from different directions.
For food, something easy to share usually works best, and I can bring drinks, plates, and a few extra sides if needed.
Marriot
 
Your recent stay makes you eligible for a home comfort set
Because you stayed at a Marriot Hotel or a Marriot partnered hotel within the past year, you may receive a 2-pillow luxury cooling set provided at no charge. By completing a very brief questionnaire, you may also claim a 2-night stay at select locations at no charge.
Program details
This offer is available to you because you stayed with Marriot or a partner hotel within the past year. The set includes 2 luxury cooling pillows, limited to one pillow set per household. You will not be billed for the pillows or the qualifying stay nights. Total pillow allocation is 500. Ends Tomorrow.
View Pillow Set + 2-Night Stay
The questionnaire takes just a moment to complete and helps confirm shipping details for the pillow set. After that step is submitted, you can proceed with the 2-night stay claim process for participating locations based on program scheduling.
About the two-pillow cooling set
1. Cooling fabric can help reduce heat buildup during the night.
2. A comfortable loft can support the head and neck more evenly.
3. Breathable construction may feel lighter and less stuffy over time.
4. Balanced fill can help the pillow keep its shape all night.
5. Smooth outer materials can create a more refined sleep surface.
6. Two pillows provide a coordinated set for consistent comfort at home.
Availability is managed by program allocation, and stay dates and participating locations are scheduled according to program timing.
Thank you for choosing to stay at a Marriot Hotel. We value your time and your feedback.
 
I looked over the timing you sent, and I think the morning slot is probably the better choice because it leaves more room if anything runs behind.
If we keep the earlier start, we can handle the setup without feeling rushed and still have time to pause before everyone joins.
It may also help to make a short list of what still needs to be brought, since small things are usually the easiest to forget.
I can take care of the cups, utensils, and extra napkins, and I do not mind checking in with everyone once more later this afternoon.