Welcome to the Brethren. You might want to go over to Cattle Call and introduce yourself to get a proper welcome.
Being that you are from Texas and can weld, an offset horizontal might be what you are looking to build. With that design, the fire is in a smaller chamber and the meat is in a larger chamber.
It is not typical to grill as part of true barbecue. Rather, we mostly cook meat at low heat over a long period of time.
Most of us have the type of smokers we use listed on our signatures. Snoop around a little and do some google searches to find out about what they are an how they work.
Jim - Another transplanted Texan
Former KCBS CBJ
Large and Medium Big Green Eggs , Black 18.5" WSM, Blue Weber Performer - Stainless, Green Weber OTG Kettle , Brinkmann SnP Pro, and a Stainless UDS. One retired Portable Kitchen grill.
Red Thermapen, Maverick ET-732, EdgePro Apex Sharpener.
Avatar is the original 1951 Weber Kettle