This topic helped me immensely!
After using several of the suggestions in this topic I found a peach recipe that my son and his friends really like and a great combo for a peach/kiwi/melon recipe but it was still lacking the fleshy sweetness I wanted for a main peach note.
For a main note my personal favorite now is Real Flavors SC Peach which is as close to realistic as you can get and Peach Cobbler for a creamy baked peach. I hardly notice the crusty bakery note in the Cobbler which makes it more versatile IMO. If you can get either of these peach flavors, I'm sure they'd be great with your favorite cream.