Yeah, level 6. I took ASI rather than a feat, bumped my WIS to 18.
In game, the meks were build by goblins to assist the dwarves, who were dwindling due to low reproduction rates. A goblin built a code into their programming that allowed him to control all of the meks, and they rose up against their dwarven masters 200 yrs ago and slew most of them. Meks in current day are either still attempting to follow old programming, or are 'enlightened' and more self aware (like robots in Fallout). My character is small, only about 5ft tall, and speaks with a 'dwarven' accent. Their master didn't want a big mek looming over him.
tl;dr - Spend the last 169 years after killing their dwarven master sealed within the trunk of a hollow yew tree, being infused with nature magics. Their beasts also have metal accents (claws, antlers, etc.).
Also ended up with a sword that the evil druid had that lets me use a longsword with WIS as attack and damage modifier... Means that for an 8 STR character, they should be fairly potent in combat even in their mek form. If they get knocked out of beast shape, I still have a mek with AC 18 and 50+ HP that can swing a longsword at them at +7 to hit and 1d8+4 damage.