you need a good timeline.
Get your butts and brisket on early. If you are cooking your big meats at 250. Briskets take about an hour per pound at 250, butts take about 1.5 hours per pound. Once those meats finish cooking, open up your wrap and let heat vent off for about 15minutes, then wrap them up and put them in a cambro or dry cooler. These will hold for 6-8 hours with no issues.
Then bump up your temperature to 275 and do your chicken and ribs.
Time line is the key to this. Know how long it will take each of your meats to cook and build a timeline around that.
In competitions I did, i had an 18in WSM and a UDS to cook. I cook at 300-325 degrees. Here is an example of my timeline
10:30 pmish - Light off WSM and UDS and get them to temp.
No Later than 12 am - Get brisket on UDS and 2 pork butts on WSM.
4-4:30am - Wrap brisket and pork butts and back onto the cookers.
6am - start checking for doneness
7am - all big meats should be off the smoker. Reload WSM with coals and wood, UDS has a large coal basket so no need to reload.
8am - ribs on the UDS
10am - wrap ribs and back on UDS
10:30am - get chicken on WSM
11:00am - pan up chicken and back onto the WSM
11:30am - sauce chicken and back onto WSM to set the sauce, unwrap the ribs and check for doneness.
Noon - Chicken Turn in, after chicken turn in, sauce ribs and put back on cooker for 15 minutes to set sauce.
12:30pm - rib turn in. After rib turn in, glaze pork
1:00 pm - turn in pork and sauce outside of brisket
1:30 pm - turn in brisket
The size of the Humpry's pint you should be able to do the same thing, but just adjust your timeline since your meat timings will be different. I only used the top rack of my UDS and WSM, which is why i used 2 cookers, I probably could of only used my UDS if I used my 2nd rack.