I don't think you are going.
Typical visa processing time is 2+ weeks.
You can get your visa faster if you can find the correct visa processing center and send an extrs $50 or so.
A lot of the processing centers on the web now look very phoney to me. Just fill out the form, and mail us some money and we will have a visa for you in 3 days. I don't think so.
Search in the Russia forum for old postings of servicable, reliable visa processing centers.