Not sure exactly what you were concerned about. Sounds like the fact that something related to the higher output current of IQ7A. I believe Enphase uses 20A branch circuits so you can have at most 16A of output per branch. You would need 3 branch circuits for your 44A of IQ7A (11 per branch).
For IQ7+ you can do 13 per branch. 6 more can go on an existing branch (though this create warranty issues with your first installer if you are using a different installer, I personally prefer not to mix). So with two more branches you can add 32 panels. 4 total branches, 80A of breakers total.
For IQ7A you would need 3 more branches for a total of 5x 20A breakers totaling 100A. This is where you may need to dive into 705.12 details to get things past review, for most calculation methods you don’t add up the breakers, you go by output current. Going by output current, it does not matter how many breakers you have for the same number of inverters. The busbar you need is the same. But this nuance is not as broadly understood as adding the breakers.
Yes this will go above the 4 breakers of a straightforward combiner install, however this is not rocket science. It’s covered here:
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This was recommended by a major distributor (
https://www.greentechrenewables.com/question/enphase-combiner-box-substitute) when Enphase equipment was in short supply.
If I was doing this (and forced myself to stick with Enphase which would not be my preference) I know the Enphase combiner uses a busbar sourced from Eaton, so it can accept larger breakers than the 20A the manual mostly talks about. I would use that to add a subpanel backfeeding 60A breaker and then put all IQ7A branches in that subpanel.
I don’t think there is significant cause for concern given what you’ve shared.