I have enjoyed my C&R (FFL03). Been fun so far. The hardest part (like all have mentioned) is balancing budget to leave room to buy another gun safe. Here are a couple of sites that may help, the first has some basic guidelines and the second is where you can order your forms.
Curio and Relic Firearms Distribution Center Order Form *****************************************************
All that is necessary for the triumph of evil is that good men do nothing