All the big Aliexpress tires are very expensive IMO.
MBS T2 tires are made for MTB and the price is reasonable.
I can imagine but if you think 10" is enough then you have to try 11" 
This is definitely by far the most wicked board I’ve ever ridden, the 4wd heavy duty offroad monster of @Duffman 
It’s like a tractor, unstoppable! I scratched both shims from riding through bushes, that was fun!