No need to put words in my mouth, I post here plenty for people to understand what I think
Read the title of the thread... I restate my answer... In the OP's situation, no a wet/dry is not the right filter for your situation...
Sure, sumps as well as wet/drys have their benefits and advantages...
But I do not feel adding a wet/dry sump is a wise replacement for a pair of large HOBs. Yes I feel doing so will leave the mechanical fitlration on this set up weak.
It is very very likely that the OP could simply remove the AC110s, and after a small 'mini cycle' due to the loss of bacteira in those filters, his remaining filtration could easily process the ammonia produced in this tank.
I have nothing against wet/dry filters, I simply understand filtration well enough to understand where they work best and where other options are a better choice.