Ok since the current files you're using are for 10.12.4 and up, brightness control shouldn't be working and might be the cause of sleep issue. Touchscreen is USB based, should be fine there.
Try these files, downgraded to 10.12.3 and below
Replace Config and DSDT, add IntelBacklight to /EFI/Clover/kexts/Other
3543_test-sleep.zip