for grilling - this would be a better choice
http://www.bbquepits.com/images/PORTABLE_BBQ_GRILLS/PORTABLE_BBQ_GRILL_30X120/portable_bbq_grill_30_05.jpg
similiar to one we built back in the day...
48 inch oil field pipe and 3 bays with 24 inch smokers on top....same firebox set up