That is awesome.
To the original poster; Don't mistake the word cheap for affordable. There are more affordable options for sure.
Myself for instance, I went with a Kraken AK-47. Affordable but decent. I had to invest $50 in a sim job, regrease and downgrade of the spring. It runs like a champ. But do realize you will be out gunned. The $500-600 guns will have better builds, better range, better accuracy. But it only makes you play harder IMO. You have to be closer, and have a better shot.