I agree with Benny, 100%.
I'd also like to point out, that you don't need to buy everything right away. I bought my kit, primary, secondary within a year's time. Slowly. Since I've been playing CQB exclusively since I started the sport, I'll be modding my M4 this week, RIS, shorter barrel and all that good stuff.
Your better off being patient, and buying what you can, when you can.
Les Baer 1911 Ultimate Recon 5" GBB
King Arms M4 Full Metal - CQB - modded