Miata Turbo Forum - Boost cars, acquire cats. - Need help wiring some DIYPNP extras

Hello everyone! For all that do not know me (which will me most of you probably) I'm currently rebuilding/reshelling my car. My DIYPNP has served me well the last six months and before my car is in working order again I would like to make some adjustments to the DIYPNP and the car's wiring loom while everything is easily accessible. I already asked this in my build thread but since that's been some days without replies the thread is probably lost within the ongoing stream of build threads.

I ran into some 'issues' (obvioulsy, why would I ask for help otherwise) so I need some help wiring the things in, the last two pictures are my take on the 'problems'..
I mainly need help with the EBC wiring, since that's the most "crucial" of these things :P Car would work fine without these things but it wouldn't get anywhere near 200whp on this wastegate without some form of boost control. I want EBC since that's the fanciest :') (Also the DIYAutoTune EBC solenoid is about as cheap as the manual boost controllers)

Before anyone shoots me, I tried to find some information, but I couldn't really find anything useful. I thought I hit the jackpot with the EBC sticky, but that only seemed to relate to the software side of things.
https://cimg5.ibsrv.net/gimg/www.mia...04de2db530.jpg
The front of my DIYPNP, just for reference
https://cimg7.ibsrv.net/gimg/www.mia...08f41cc8f8.jpg
The back of the DIYPNP, again, just for reference
https://cimg0.ibsrv.net/gimg/www.mia...cf43852dcf.jpgMy incredible artwork, I need help wiring some things

Okay so the picture is way too big on my screen, but oh well. I've been searching on the interwebz for info about this but I can't find that much information that I understand. I found this thing on DIYAutoTune.com (https://www.diyautotune.com/support/...s-and-outputs/) from which I was able to pull some information.

I'd really like a physical switch which I can use to change fuel/spark maps, something like a "Sport button". (despite the an mx5 pretty much always being in "Sport mode" when the engine is on) But I might get something like an exhaust butterfly valve in the future, apart from that I'd like to artificially create some pops in the overrun, but I want to be able to turn them off as well without diving into the software and changing the fuel/ignition table. This seemed like a really cool way to do that in my opinion. Also I could get it tuned and let it switch between more/less aggressive spark maps. According to DIYAutoTune that's would be possible with "table switching", but I don't know if it'll work the way I have drawn it.

I also want to get the EBC solenoid from DIYAutoTune but I have no idea on how to wire it. My thoughts were something using the DB15 but I have no idea what.
https://cimg1.ibsrv.net/gimg/www.mia...060d083860.jpg
Also need help for this wiring :')

Last but not least, since the MX-5 does not have the starter interlock "Clutch Switch" like the Miata has (mine doesn't have one), I want to come up with my own switch system thingy, which I also want to be able to turn off using a regular switch on the dashboard. As far as I understand it'd work pretty much the same as the table switching switch, so this would be my take on that. I'd remove the Input 2 IN > 1V and wire something like displayed in my beautifully created drawing.

Any help would be greatly appreciated! :D