Hi Buck,
Dave made some very good points. I have a few thoughts to add.
I would recommend compiling a business plan to really get an idea of the feasibility. You've sketched some VERY broad strokes as to what type of restaurant concept you are after. With a few more details, you may get more responses to your question. I'm thinking things like full or quick serve, how wide of a menu variety, hours of operation, liquor/no liquor, will you cater, that sort of thing. You said you would manage the place yourself, which is probably a good idea. People love to see the owner in the place! The flip side is that it can hamper your ability to focus on growing the business when you spend all of your time dealing with who called in sick or what particular saleperson wants a meeting with you or whatever. The daily operations alone are about a full time job and a half.
In regards to site selection, one thing you said threw up a bit of a red flag, but it might be nothing. I'm not familiar with the geography of your area, but you said "what used to be a small town west of Birmingham". Is this sort of a suburb of Birmingham? If so, many suburb type communities have a very thin lunch daypart, as many folks commute to work in the larger city. If you have a lot of families that just have one parent working, this can be an even larger issue, as the parent that runs the household is usually the female. The customer demographic for most BBQ places tends to run heavily on the male side. The industrial park you mentioned could be a good source of lunch guests, how many people work there? Do they have any on-site foodservice providers? Another thing to consider on the site selection topic is the shopping center itself. Is the space you're considering end-cap or middle row? What other types of shops are in the center? Do the shops already there seem to be doing a good business, and if so, who are their customers? Do the customers fit the demo you're going to be targeting?
You mentioned that the Mexican place in the area is packed, but you don't care for their food. Where I live there are some very busy Mexican places that I don't care for, but obviously many people like them. I'm kind of a mexican food guy, so I tend to be picky when it comes to finding the best, not everyone is that picky, and Mexican has a broad appeal. What I'm getting at is that you should talk to your friends and neighbors in the area who eat at the Mexican place, and find out why they eat there. Ask them about menu prices as well. Mexican food tends to be less expensive than BBQ in many cases, but if their prices are on the higher side, it may indicate that folks are willing to pay more.
When you ask questions about opening a restaurant on an internet forum, it may seem like you get a ton of negative responses, and you may view mine that way. I certainly don't intend it to sound that way. Depending on the details, for the size space you mentioned, you're probably looking at $100,000 at the minimum to God knows what for the maximum to open this thing up. That's a lot of dough, and I for one would like to know about all the potential problems before embarking a a project. The good news is that if you enter into a deal like this informed, you can lay out plans to overcome the hurdles.
Good luck, and and keep posting!
Matt