I still don't know what an orchestator does...other then yell at his guests when they arrive at his home environment late.
I will take the serious side of this, DR MBARNUM. Leonard Bernstein's Young People's Concerts, so praised here, deals with orchestration in the third concert/lecture. Frankly, I think that's a bit ambitious for the 7- to 15-year-olds that comprise the audience, but it's all ambitious--and all wonderful. In one hour LB gives you an overview of orchestration. Netflix, disc 1. I'm loving it.
As for the temperament of said orchestrator, well, you two can work that out between yourselves.