That's why 3DR advertises an "open platform" with the SOLO. If you want these features, all you have to do is build them and you're in business!! It's just that easy! LOL!! Not to mention the fact that you'd be a wealthy man.If GoPro ever comes out with a camera with a decent flat lens, I would be interested in a Solo, but not before. A nice 75mm equivalent would have me sold in a heartbeat.
If 3DR really wants to show they can do something no one else can, they could build a gimbal and interface for the Sony RX100m4 and we could have 720p 960fps or 4K60 and a top quality lens.
Maybe what you're looking for is an S1000 or the Matrice but, for under 2k I don't think you'll have much luck.