Reading this question got me to thinking... why do we so readily downvote these types of questions? It's apparent that the user doesn't even really have knowledge of whether or not these modules exist... and he's looking to potentially head in a small scale production run.
To me, these are some of the things related to shopping that we, as a community, are more than qualified to answer. Something that would otherwise be extremely hard to find on your own. Things like volume pricing for custom modules, etc... that's hard to find information. We have people here who design devices that get mass produced... these guys have sometimes intimate knowledge in purchasing, etc.
Can we re-quantify the true meaning of a "shopping" question and maybe show a little more love, and spread a little more knowledge, to dudes like this?