Best Live Multi-track Config?, FOH console outs vs split mic feeds? Options

[checht]

I'm putting together a rig for live 16 track recording. I'm trying to pick between the MOTU Traveller, 828 and 896, using number of mic pre's as the main criteria. While I'll always want a couple of preamps for an ambient pair, I've thought about using the Traveller or 828 and running most of my inputs from the FOH console channel inserts.

If I assemble a system to record mic ins, I'll need to run isolation transormers off the stage feeds, then route signal into mic pre's on the 896. I'd love to avoid dragging the transformers and extra cables.

I'm wondering whether it's reasonable to rely on being able to grab signal at the send half of an insert loop. This strategy would leave me at the mercy of whatever quality mic pre's are in the console.

I'm fine building any cables I need to, including ones that would retain insert loop functionality for the board.

So, rely on the FOH console, or go the independent route?

Thanks