My strategy is to start with cold soak for a week with pectic enzyme and then use the normal fermenter with skin and oak chips loose for 6~7 days until the volcano is subdued. Collect solids with kitchen strainer into the bag and drop the bag into the fermonster with a big glass marble. Rack the liquid to fermonster as well. Leave some gross lees behind. Wait for whatever weeks for EM with airlock on, just like normal secondary fermentation.
After that, pull out bag and squeeze and rack liquid to carboy with KMS. no sorbate, no chitosan, NO degassing. Rack every 3 months with KMS for a year. Then bottle. Let the natural do the job.
If oxygen is a concern, I can start another small batch (or spare 1 gal juice ahead of time in fridge or a cheap kit without skin) and run a hose to the fermonster and share one airlock to feed CO2 to the headspace. (drill a hole thru the big 10#bum should be easy. A cheap way since I don't own a CO2 canister) .