Lawn reno help me pick

I have a good 30000 square feet in my back yard that is mostly weeds. I plan on doing a reno this fall of about 10000 of it. I figure I'll break it up in thirds to be able to handle it a little easier especially the irrigation part of it. I am looking into an irrigation system but not sure that's in the cards this year. Anyway I'm thinking I want a KBG lawn I was thinking of TTTF & KBG but thought I would try KBG first and if I have issues I can always overseed with TTTF. Can you please help me with the mix of kinds of KBG? I was thinking bewitched for sure since there is a few spots that are a little shady.
Other types I was thinking was
Prosperity
Award
Blueberry
I have never done a KBG reno so def need your help here
Most of my lawn has sun for at least 6 hours there are a few areas against fence thujha lines that are less maybe 3 or 4.
I have 2 little dogs so that shouldn't be to bad.
Not sure about irrigation might get a system if not I should be able to handle the watering needs especially after the lawn is established.
I am taking a soil sample of the area and bringing to get a test done. Ct does it for free and will tell me what I need to get ready for my new lawn.
My plan is to nuke the site with roundup let it die then cut super low bagging all the clippings. Hit it with my york rake on my JD 1025. Then nuke again. I wait another week or 2. Top dress with 2 - inches of topsoil grade and level. Put down the nutrients I need according to the soil test.

Then seed and cover with peat moss.
Any help I would appreciate