Biggie058

For me personally, my case was received at the consulate in Montreal and it was sitting on ready for few days.. And then I received a letter from the NVC saying they forwarded my case to the embassy.. and then a week later I received my packet 3 with directions. After sending my packet 3, I got my packet 4 the next day.. now I'm just waiting for an interview spot to open so I can schedule and pay the fees. Hope my time line helps you a little bit.

scheduling K1 visa interviews and paying the fee is embassy dependent/ they all have different rules to pay and sechedule
so,  let the VJ community know the country 

In that case you will wait roughly 3-4 months until you're notified via email or snail mail that you have an interview date. 
We waited 135 days from the date DHL delivered the application from NVC to interview at CD Juarez.  Status remained "Ready" this entire time and only changed to "Application Received" on the day of the interview. We didn't get an email as they sent notification to my home in the US. Luckily we called the consulate and found out we were scheduled 2 weeks prior.