I bought an offset chargriller like above with a single smoking chamber and it works better than expected. I only needed it to last about 3 years since I had plans to move and didn't want to move a smoker. Based on the rate it is rusting it will be on target.
I doesn't hold heat worth **** and is tough to regulate with chips or briquettes, but when I put 3 small split logs in it, it regulates keeps the temp in the 225-250 range without really trying. It uses a lot of wood though.
If you want one for 5-10 years+ get a heavier gauge one. It will cost in the $400+ range, but it's worth it in the long run.
Second the Weber Smokey Mountain. You can find one pretty cheap on Amazon usually. Careful though, because they have different price listings depending on how you searched for it.
BTW, isn't making jerky more of a dehydrating or a cold smoking process?
For jerky you really want a cooler smoke not direct heat, so I'm not sure the bullet will do the trick. I would really do this by venting the smoke from a smoker to a cold smoke box set some distance away. I would not recommend the chargriller for this either since it is not well sealed and smoke would escape everywhere else but to the smoke box.
On the other hand you in this heat you could put your bullet (or an black metal box) in the sun and the strips of raw meat strips inside on a rack and you could make jerky without a fire.
I like that. You could even put hooks in the lid to hang sausage or cheese. I had seen some made out of cardboard boxes, but the trash can looks a lot better.