Question Regarding intital startup

I am getting antsy. Everything is done with my 340 installation except the 904 trans kickdown/pressure linkage.
I want to start the engine; check for leaks, scare the neighbors, but I don't want to put pressure on the trans.
Can I start the engine in neutral so i don't prematurely cook the trans? I am not going to drive it.
Will the transmission be OK in D or N if I just start her up?