Oil Pump(930) torque specs, etc.?

[WERK I]

I just visited the machine shop that was cleaning various engine parts. In his thorough cleaning regimen, he disassembled the oil pump. Well, this is something I really did not want him to do, but that is water under the bridge... I have a few of questions;

Q: Is only one of the shafts keyed and is it the main shaft gears?

Q: Are there any ramifications that we should be aware of before reassembly occurs because the pump was disassembled?

Q: What are the torque specs for the housing assembly?

Q: Are the housings assembled dry(no sealer or gasket)?

Thanks in advance,

Dave