Most of your points are massive guesses at best.
I don't think them unreasonable deductions. If you believe I'm wrong, then please say so.
Considering, we talking about a country that the most military personnel in the world
Most doesn't mean best. If I remember correctly then Saddam's Iraq had the 5th largest armed force in the world at the onset of GW1. They didn't fare well, did they?
. The West has little information about the moral of North Korean troops
Looking at life in N.K. I believe it's reasonable to say that moral is low. Unless you think starvation, beatings and a F.U.D. mentality lend a lot to moral in a country.
. The North Korea's mountainous terrian will turn this potential conflict into a mostly infantry and artillery war
While it will limit the use of tanks, I believe that if we see conflict it will feature rotary wing a lot and air supremacy will quickly be gained and maintained by allied fixed wing.
. North Korea has a large supply of both of infantry and artillery
Doesn't mean either is any good. Who is to say all those troops won't just surrender in the hope of a prosperous new life in S.K.? Hoe often do you think those N.K. gunners practice? How well maintained do you think their weapons are? In a mountainous country (read limited mobility for SPAGS) who's to say how long any battery will last before counter-fire or fast air eliminates it? Even for the amout of time that it
is operational, it will have difficulty striking accurately against allied targets in mountainous terrain and even then, mountainous terrain can provide a measure of cover from artillery attack.
. North Korea has had ample time to construct their defenses
I assure you that they can be destroyed very quickly (IE bunker buster). I suspect the largest problem with their defences will be locating them in the terrain.
. Airpower will play a major role,
Agreed
but it has lesser role in mountainous war. Most bombs cannot destroy underground mountainous defenses.
While you have a point, airpower can cave in the entrances to a tunnel network and anything hiding underground isn't really fighting the enemy above ground.
If the enemy dominates the battlefield above ground then they do just that; dominate the battlefield above ground.
If we're to go by history, chinese "volunteers" might get involved.
Scary thought. Can't rule it out.
If Afghanistan is anyhing to go by they'll settle for giving the chinese their latest body armour and mines.
Then again, last time china helped N.K. it regretted it.