Buyout Bradley Beal's two years 110M contract & stretch it for 5 years 18M each.
Trade KD to Houston & get back Lauri Markkanen, Walker Kessler from Utah & Jabari Smith from Houston. Utah will receive Jalen Green, Reed Shepherd & picks (they should get more picks than what I've done above)
You need a proper PG so sign D'Angelo Russell with MLE & sign Monte Morris & Larry Nance Jr for minimums
Now your starting five is
D'Angelo Russell, Devin Booker, Royce O'Neale, Lauri Markkanen, Walker Kessler.
Bench five
Monte Morris, Grayson Allen, Caleb Martin, Jabari Smith Jr, Larry Nance Jr.
I know this team can not win it all but they have a lot of flexibility in terms of contract (now & future) and have some key young pieces. You also have Markkanen & Booker in same timeline to contend.