Wave, I imagine as a cop you can just order the gun, take possession of it on your badge just like you would through a dealer or private sale, and then do your paperwork. My question is for us civilians who have to have the gun listed on our permit prior to delivery.
I'm going to call the State Police on Wednesday and see if I can get a written ruling. I'm going to try to pitch the angle of purchasing the gun, having a receipt sent to you with the serial number and then using that along with a C&R to add it to the permit and take delivery. So long as you do not have it in possession until its on the permit they might bite. With a wrotten ruling from the State Police the local issuing authorities should go along.
We'll see. I have to imagine this issue has come up before.