Well done. As for tyres ask other forum members doing similar rides.
Other things to consider adding to your shopping list are. Rack, quality panniers ( I've bought cheap ones and regretted it), mudguards. When comes to lights you have two options, detachable USB rechargeable lights or hard wired ones powered off bike battery. Hard wired is so much nicer, always there, don't have charge them or have them go flat halfway home, don't need to remove them when locking bike up.
You may still need extra battery helmet head light.
The USB lights are rated in lumens while fixed ones are quite often in lux roughly 1 lux = 10 lumens. For commuting on unlit roads and paths 800-1000 lumens (100lux)min.
If money no issue Lupine and Supernova do some excellent Bosch power lights.
Long term you will need spider tool to remove chainring for servicing bearing seal. See attached for bearing seal kit and tool, last two items on list. All PNs are for Bike.discount in germany. May want to consider stocking up on chains and chainrings while you are at it along with chain stretch measuring tool.
For 11spd chain expect about 1000-1500km depending on riding conditions and maintenance, replace bosch chainring with chain.
View attachment Cube Stereo Hybrid 140 HPA Race 500 27.5 2016 bike parts.pdf