If you must have a single battery DNA-75C mod make sure you get one that takes a 21700 battery. You will likely be disappointed with runtime on a DNA-75C with a single 18650. Unless you don't mind carrying some spare batts with you.
I don't know of any DNA-75C mod that fits what you are looking for with being able to take a beating. What kind of a beating exactly will you be putting it through???
I don't know your location but an excellent DNA-75 mod to look at would be the JAC Vapour DNA-75 mod. Several at ECF own and love 'em. I have a couple. They are single 18650. It's not the color display but it gets excellent runtime. Personally I don't care for color displays on a mod.
JAC Vapour Series-B DNA 75w
If you want an excellent single 18650 mod that can take a beating (normal drops etc and even water proof {to a point}) then take a look at the Geek Vape Aegis Solo (single 18650). Are you looking at a DNA device specifically for its TC? I have some Solo's and they do TC excellently.
I have Pico 75's and they can totally take a beating (dropped on concrete and many other surfaces) and still work. Also the Pico's do great in TC if you have installed the Arctic Fox firmware. With the AF sw you can tweak away just like on a DNA mod (escribe sw).
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@Eskie said the Thor 2 or VA mods are NOT meant for "taking a beating" or any abuse. They are high end, high quality mods.