Too high a price. Jeff Green straight up I would probably do.
I think that is a fair deal for both sides. Green for Gortat.
That would leave the suns with 3 "sorta kinda maybe" good SF's though, Dudley, Green and Beasley.
Beasley should play the PF slot. Beasley is better there than as a SF. Dudley is best used as a backup SF. His lack of athleticism is easier to mask. Scola is best used as a backup PF due to age and decline. Jeff Green is best used as a starting SF.
SF - Jeff Green, Jared Dudley, Marcus Morris
PF - Michael Beasley, Luis Scola, Markieff Morris
I don't think Beasley has a future in Phoenix anyways but I think it works even if they choose to keep all of their guys. Guys in proper roles except for Marcus Morris who's playing time would be eliminated.
In addition to moving Beasley which I expect Phoenix to do, I think Phoenix should also trade Jared Dudley and Luis Scola. Neither has much value to a rebuilding team. I'd love to see Dudley work his way to a title contender. He is a very good glue guy. Just about perfect coming off the bench.
A guy like Jeff Green and to a lesser degree Marcus Morris are good guys to have their long term. Both could spend the next 5-8 years there, have room to grow and could be quality contributors. Those should be the forwards Phoenix looks to keep for the long haul.
I'd move Markieff Morris too. He has been a disappointment.