Few questions before pulling the plug

Hey everyone! Got a lot of valuable info already from this sub, but I want to ask a few precise questions before I actually delve into building a new PC. Basically the machine I want to build is going to serve me for (in order or priority): 1. Audio work (mostly composing in Ableton and Logic, max/msp and other stuff) 2. Photoshop 3. Unreal Engine for creative purposes, some other 3d apps 4. Gaming on Windows

Most important (as far as compatibility goes) components I chose so far without going into the details: i7-7700k GTX 1060/1070 (need to balance the budget before deciding) Gigabyte Gaming 5 z270 board 256 gb ssd drive for os x 240 gb ssd drive for windows 10 2tb drive for os x storage (all creative assets) possibly more storage, need to plan that further

Now for the questions: 1) Is it possibly worth it to go for an AMD gpu given native support? Are Pascal cards behaving fine and without major hiccups, especially in creative software? 2) How is Thunderbolt support? I can live without it right now, but it is important for me. Would also mean I wouldnt need to buy a firewire card since I already have a tb to fw adapter 3) dual boot. If I understand it well I just install os x and clover, unplug the drive, install windows, replug the drives and boot through clover from this point on? 4) Any experiences with the mobo I mentioned? I feel like its a good choice and it's tb chipset is supposed to be better from other makers. 5) how would it work if i wanted to assign an additional 1tb hdd for windows? Some creative software works better or is only avaiable under it, so it could be useful. Is it going to be as straightforward as i think - ie. just a plugged in drive formated under windows to a preferable format? 6) i plan to use the hackintosher guide, definitely not going to go for the bloated installs. It seem straightforward and well done, any voices on that? Do i need the infamous bluetooth adapter for hand-off etc in this case? Will a magic trackpad work without it?

Will propably update the post or something since I'm just killing time on an airport right now on a phone, so I might have omitted something.

thanks<3