Cana Modz Clone
$68.99.
Toss in a $10 Sony VTC5 battery and you're all set.
NOTHING is overkill. Everything is just limited to different degrees. The MVP is much more limited, and in the long term is more expensive. No matter how you look at it the MVP is disposable. The battery isn't replacable and neither are the electronics. If it wears out, the battery stops charging, or it breaks you throw it away.
And then there is that nasty point about 2 weeks into building RBAs where you suddenly realize that 11 watts isn't enough to power your 1.2 ohm coil properly.
So, you're spending $40+ knowing that you're going to have to buy another mod to replace it probably within the next month or two.
Or you can buy a Hana clone for $30 more. You'll get an extra 19 watts of vaping power, you have replacable batteries, and even if the chip goes bad you can replace that too. You can even replace it with a real Evolv DNA30 chip for less than $50 and have a bona fide DNA30 device for less than $120 if you wanted.
Get the RBA after he has the proper mod to power it. Then he can do what he wants with the RBA and not have to worry about the limitations of his mod.