My biggest problem with turkeys is that I have chickens, and from what I've read, it's not smart to keep them together because of blackhead.
If Blackhead is a known issue where you live then you are correct. There are many areas (in particular sandy soil) where Blackhead is not an issue. You can contact your local agriculture extension agent to find out if Blackhead is a problem in the your area.
I live on a sand dune and Blackhead has never been a problem for me. I do keep chickens and turkeys together without any problems.