I am not sure if can be refitted into a 88MH machine.... technically I dont think any issues... this A2 came with 5 board for 110MH.
One of nerd friends is working on the A2 now and I hope he could make it work again - so I will hang on to it for little longer.
I don't really see any issues with this, if your miner has 5 boards then I am guessing there the 12 chip blue boards. The way it stands you should be able to put 6 boards of whatever in them as long as you can handle the power requirements . If you don't have any luck with the dead boards send me a message maybe we can trouble shoot it a little better.