If Lowry wants to play in Philly, the Raptors may just buy him out and let him sign. I wouldn't give up a lot of future resources for him.
Post season 8-man roster with possible Morey tweaks (non-blockbuster edition):
Ball handling guard who can shoot--Hill, Lowry, Galloway
Another Shooter -- Will Barton, Cedi Osmun, Josh Hart
Stretch 4/5 -- PJ Tucker, Bjelica, Luke Cornett
If I could get the ones I'd like regardless of trade cost or salary I'd go Lowry/Barton/Bjelica
Howard and Thybulle getting specialized minutes.
I think a roster like this gives them a puncher's chance at making the finals and scaring one of the Western Powers.