Considering the original guy was outrebouding even playing M2M versus 3-2, I'm not sure I would go with 1-3-1. You'll take a big hit in rebounding with that.
3-2 should be good, but do you have better outside defenders, especially for the SG and SF positions? His SG ate your guy up from 3 point land (7-16), as did his SF. After Ackovic fouled out, how did his replacement do (it's hard to see who replaced him)? Maybe that guy could start.
Also, does your opponent ever switch to inside tactics? Doesn't seem likely, since your earlier game against him he did MOT/3-2 zone. IN general though, if your opponent can play a decent inside game, 3-2 might be a bit risky, but in this case I'd guess it would help you reduce his scoring a bit.