Hello Sir
We have gone through your requirements & Discussed with my team.
i have joined 5000 Facebook groups from USA , CA & UK
i can post to 1000 Facebook Groups, with maximum Members on them,
you have the option to chose GEO targeted groups or niche Wise groups to be posted on.
with your "Business marketing text + Image" with redirection to your Business site or fan page etc, this will create a lot of Promotion / Sales & local traffic to your Business also i will provide proof.
for further work plan & work sample, lets have a chat.
Best Regards