It looks like you have a total of 3 intakes (1 ball valve, 2 w/ caps), is that correct? Any reason you went with 1/2" instead of 3/4"? Doesn't look like you welded them in, what are you using to keep them in position w/o leaks?
What did you use for your charcoal ring/basket and what size did you make it? Would love to see a pic of the inside.
Thanks for any insight and help, I hope to pick up my barrel tomorrow.