+1 usna.
The fact is unless you want to know about your MOC, usna's option or asking posters here from your district are the only 2 routes to go IMPHO.
Our DS received all 3 MOC noms when he went through the process.
Sen 1. Interviewed him on Sat. and the Congrats letter was in the mailbox on Tuesday.
Sen 2. Did not interview, the application was due Oct. 15th, and the Congrats letter was in the mailbox before Thanksgiving.
Cong. Did not interview, the application was due Sept 30th, and the nom showed up on his portal end of Jan. Never received a letter.
As you can see, just for our DS, he had 3 different results. Asking how long without stating your MOCs, chances are you are going to have different answers, with no bearing on how it will impact you personally regarding what you would like to know for your future.