I think I'd leave it as is and just build a charcoal basket and set it off to one side. It will only use up 8-9" of you grill on the side. That's not much room to loose.
"Please let me be the person my dog thinks I am." ~Author Unknown
8 x 18 Haulmark Trailer
Fast Eddy FEC 100
Traeger Texas BBQ 075
UDS "Cool Hand Luke"
3 Weber Kettles and a Yellow Thermapen
KCBS Certified BBQ Judge #8425