There are some Comal County volunteers on the website: Random Acts of Genealogical Kindness:
http://www.raogk.com/texas2.htm
Al Marin shows that he will do still photos of headstones. You might give him a try.
Take care — I would do it for you but I live too far away. I also have kinfolks in that cemetery and only found it by accident one day. It is on the Old Bastrop Highway.