OK to get simplicity to work on 10c without a PC, you need to do a bit of work.
Go into the simplicity zip, open the meta-inf folder, to in com/Google/Android/.. You're looking for your updater-script.
Now you'll see these lines,
getprop("ro.product.device") == "w5" || abort("This ROM is for the \"MPCS LG Optimus L70\"; This is a \"" + getprop("ro.product.device") + "\".");
assert(file_getprop("/system/build.prop", "ro.lge.swversion") == "MS32310b" ||
file_getprop("/system/build.prop", "ro.build.version.incremental") == "MS32310b.1396838774")
What all this means is you have to edit your build.prop to get simplicity to flash on your phone.
You do have to be on a stock rom first. There's a flashable stock v10c rom. It's a lot of work without a PC but it is possible.