Thanks all, great advice.
So, I don't have any TIU right now, I'd be starting from scratch. With my current set up, each track has it's own Z1000 (the smaller ones have Z750) bricks. Each with their own IR module.
I like the sound of this DCS Explorer. I'm not in a rush to upgrade, so I can wait until this is released. And lastly, I do have a tablet, I'm using a Samsung as I'm not an Apple fan.