The best advice I can give you is do research on the 450 or whatever your going to purchase. The internet has tons of info on these birds, look at the many build logs. There is plenty of info on this forum as well as others, use them. In the long run it will save you headaches as well as cash. Build it on paper before you buy, this way you know what you need to set a budget, shopping for the stuff is best when you come across a deal, dig, the deals are out there. Ask the questions, thats why we are here. We've been there done that. You will always learn something regarding this hobby it's never ending. You will find that there are a lot of people with different opinions and different experiences, with the majority willing to help. I know it's hard when there are two little ones involved. You have to feed them before you can feed your own addiction ( this is an addiction if you don't already know that). Investigate, and plan, you'll eventually get what you need to fly. Hope this helps, and good luck.