If anyone is still looking for a means to accomplish this update, I modified the 2.6.0 Search Plugin to support any, all, exact searches. You can find the details here:
viewtopic.php?f=33&t=7874
I have not updated to the 2.7.0 Search Plugin, since I made some other updates in the 2.6.0 version (I needed to support thumbs and linking directly to a photo - instead of a gallery). Let me know if anyone encounters issues transferring the modifications to the 2.7.0 Search Plugin, and I'll post updates.