Let's all remember he is new to Vaping...let's not overwhelm him, and have him spend 150-200$ on just the mod alone My advice is to get a safe, mod that does great temp control that is affordable.... for the price of some of these (high end)mods he can get a very good mod, a RDA and a RTA for the same price(3 things more bang for your buck)....that way he can learn to build his First coil.....
Wismec Predator $39 (plus batteries)
Geekvape Pearless RDA $25 (almost any coil size will fit in it)
RTAs 30-45$ (many styles to choose from) single or dual coil
As a beginner in Vaping, learning to build your own coils on different atomizers is a fun and valuable lesson to enjoy a great vape that you can learn to customize. Then take it to the next level and refine it with a DNA mod....
But, If you CAN afford get a DNA a RTA and a RDA all at once then go for it..... example, a DNA is like a fully loaded car with ALL the options, do you need them all to drive to work? No, but it sure makes for a smooth enjoyable ride..