I'm doing the same thing today on the WSM. I did the ham first and the turkey is on right now. If I do this again I'll follow Kevin's advise and do the turkey first.
My ham recipe calls for 210 temp with basting every hour. I used the Minion method and started with pretty much a full charcoal ring. I was expecting colder temp (started at 32 but is low 50s now) and rain and didn't get either. I couldn't keep the temp at 210 with all the basting. My pit was around 240 most of the time.
Now, it's difficult to keep the turkey at my target of 325-350. Would have made more sense to have done it the other way. I do have a digi and it helps with the higher temps. Just has to work harder than normal.