finally got back to work on these....
I purposely cut the tops slightly too wide so that I could trim them off with a flush trim bit after glue up
After running the flush trim bit across each side and a light sanding
Next came the 3/8" roundover on all inside edges
Then a 3/4" roundover was cut on all outer edges
When I built the dual 12's, I drilled the holes for the wiring after assembly... it was difficult getting the heles where I wanted them due to the size of the my drill. This time, I pre drilled the holes on the drill press before assembly, one in each rear brace and one in the middle section of the baffle
Will make the bases from a double layer of 1" MDF and grill frames from 1/2" MDF, hopefully this weekend.