lbwar15, you can buy smoke, flares and breakers from a few different sources. Ammo is kind of pricey. If you load your own you can do it for about 1/3 of the cost with out incurring the haz mat fee. You will have an initial investment into reloadable shells but you can use them over and over. I make Screw Apart Black Powder Reloadable shells that use a 209 shotgun primer along with fused card board tubes and disk for them. Check out
http://mlrdistributing.com to see what we offer. If you have any questions do not hesitate to email me anytime or call me between the hours of 9am and 5pm Eastern and we can walk you thru it all!
Mark