Wow, you are doing great work on one of the best kits ever made. (Built two of these myself earlier this year)
On NMF I started way back when with Model Master Metalizers, but found those to be notorious for not adhering well. Switched to Alclads and have found them to be far more sturdy and forgiving of things like masking, although they will lift a bit to the point of changing the sheen, not seeing underlying primer or even plastic like the MM paints do. But these AK paints you are using look fantastic. I will need to add a few of those to my paint collection to give them a try.