Regarding your display, you may want to reach out to @odospace in the Odospace Remote Panel / Android thread. He might be able to help. The other option would be to modify one of the themes yourself. While intimidating at first, it's actually pretty easy and fun as you tinker with it more. The hardest part I think would be resizing background images, etc. You can use Gimp (freeware) and the many tutorials for that.
As for the tablet wake question, my Samsung tablet is rooted. Thus, I modified the boot scripts so that when the device detects a charge through the charging port (i.e. plugging it in), it boots the device. Similarly, when a charge is not detected (i.e. unplugging it), it shuts down. The shutdown is performed via the MacroDroid app, but the function also requires root. For all of this to work properly, I had to disable the USB trickle charge that sometimes is configured by default in BIOS. Although my device is not mounted inside the case, I suspect that others may have employed a similar solution.