I've bought from Anovos a few times, and yes they take your money before starting production, as soon as you put in the order. I'm waiting for a gold TOS tunic that I'm supposed to get this fall, and the First Contact gray and black jacket that I should get this summer. Both of these I paid for last year, and have already been charged for them. It takes so long for Anovos to produce the item, that buying from them could hold up the production of your film until you get the costumes from them.
At times I get frustrated with Anovos, especially with my last order for items that were in stock. So I don't de-rail the thread, if you want to know about that, feel free to pm me. I'm glad to talk about it.
Oh and before I forget, WHERE'S THE MOVIE ALEC?