You must be terribly bored of all these "Why Not X" posts by now, but... why not the Nokia 105? I have the Nokia 100 and it does the job (texting, calling, playing Snake) just fine.
The 105 has even more standby & talk time per charge, allegedly, and I only charge my 100 once every week/fortnight depending on use.
Worth a look but not much cheaper so if having access to the internet, or having a torch, is important to you it won't be so appealing.