Yep, my '14 has awesome aluminum rims with a hole for a rim lock but did not come with rimlocks. I would humbly recommend a tool and die shop and someone with a TIG welder. Frame is supposedly mild steel so should be easy. Tool and die folk weld and fabricate all day and should be able to grind it down nicely and make it strong and pretty.

 

I went with MP Litelocs front and rear... I don't know about durability yet, but they work great so far and didn't take a ton of weight to get them balanced enough for road work.

 

Yeah, if they are the blue MP rim locks, they are good if the size is correct and they are tight. Remember, never use oil based lube like oil, silicone, WD40, etc, to mount your tires. Little dish soap and water, rinse and wipe clean before airing up.