Thanks for asking. I know exactly how you feel as I've been there and done that. Good for you and your wife for being such go getters. What I do with crew is I've realised the most important members are Director, DP, Editor and Makeup Artist. If your budget is limited as mine was just make sure you have enough that Those Members are paid well ( or well according to whatever your budget is) Sound is something that can always be fixed later. I've had film students operate sound before and it's been fine. When I was new to town I found these crew members by advertising on Craigs List. Always ask for their reel or resume so you can see the value of their work. Once you have a good Key person in place like a director. They usually have a preferred DP who they work with and in the same way the DP may have a preferred camera man ( although a lot of DPs like to do their own camera work) So with me I make sure all these key positions are taken by people who are good. Anyone else doesn't have to be A list they just need to know how to work together to help create the vision. Most importantly it's good to make sure you're all on the same page and can get along as so many productions fall through through disagreements over artistic vision. PS if you'd like feedback on your movie I'm happy to give it. Feel free to private message me here.