If you are unable to find someone on this list who can help you, I have two
suggestions:

Contact the findagrave contributor. She has offered to take requests and has
a link on her profile page.

Are you familiar with Random Acts of Genealogical Kindness (www.raogk.org)?

If not - bookmark it!

This is a terrific group of genealogical volunteers around the world who offer
all kinds of assistance, including photographing cemetery stones. I've called
on RAOGK volunteers in the past and have paid it forward by helping others.
There are volunteers in Illinois who might be able to help you. Consider doing
the same.

I refer you to Dick Eastman's blog for background. (Or search for the title)

Random Acts of Genealogical Kindness is Back Online
by Dick Eastman on January 4, 2015

https://blog.eogn.com/2015/01/04/random-acts-of-genealogical-kindness-is-back-online/
[MOD. NOTE: shortened URL - https://goo.gl/4niuhD ]

Sincerely,
Pat Weinthal in Massachusetts

Researching WEINTHAL/WIJNTAL/WAJNTAL/WINTHAL and variations
ARNHEIM, STREEP, DRIESEN