allowing for rookie and expiring contracts I'd go with Wiggins and Towns from the Wolves and add Beverly, Giannis, and Jokic (Embiid is probably better but with the injury issues, I'd rather have the continuity in the starting lineup). On the bench I'd have Thomas, Walker, Harris, Bradley, Embiid, Covington, and Porzingis.
So new team
PG - Beverly, Thomas, Walker
SG - Giannis, Bradley, Harris
SF - Wiggins, Covington
PF - Towns, Porzingis
C - Jokic, Embiid
The strength of a team like this is of course its depth. That is where it could really make up some ground on a team like the Warriors. I do feel a bit strange with the weakest of the 3 PG's starting, but I think the team needs Beverly's defense in the starting 5 and Thomas and Walker would be great off the bench in this type of scenario. As I mentioned above if healthy Embiid is better than Jokic, but you can't count on his health so I'd start Jokic.