SolArk has 200A breaker on inverter output only. Inverter input (from grid) is just lugs, no OCP.
If your 200 amp 240 volt disconnect is fused, you're good. If not, need fuse or breaker. Most of the Square-D switches are available fused and unfused, NEMA-1 and NEMA-3R
The utility pedestal has a 200 amp breakered disconnect.
Perfect, that takes care of OCP. Something like Polaris downstream of that can go to non-fused visible blade disconnect, maybe either 200A main or 125A backfed "generator" breaker of a panel (if you use interlock for bypass), more taps for future expansion.
Of course, if you get a 200A transfer switch that can feed 200A from either grid or SolArk into loads panel. But I think you would need another 200A knife switch for the required disconnect between generator (SolArk) and grid. Draw a block diagram and make sure you've got the required and desired functionality.
I'm thinking DPDT unfused knive switch for disconnect, 200A & 125A interlocked breakers for bypass. If inverter doesn't get repaired and returned fast enough you can swap wires for 200A direct from grid.
I'm not finding the particular words in "NEC 750.20" so not sure about that.
Could be that N-G bond is supposed to occur at first disconnect after meter for that path, and first disconnect after inverter for that path? I don't always care as much about rules as things making sense and working. SolArk, if designed to mobile requirements, would switch neutral and bond internally. But I don't think it does. I would prefer neutral continuit and bond always being present, whether SolArk is present or removed. For my lower pass-through amperage, I accomplished that with a single conduit carrying input and output wires for inverter.
Oh, and I don't believe loops in ground, or in neutral, are a bad thing. Which means routing ground and neutral with both input and output works, together with routing them to load panel both direct from grid and from inverter.