I too have a 62 qt Bayou Classic and I'd say it's just big enough to comfortably boil 10G batches considering boil-off, the immersion chiller and trub loss. I bought mine in December and most places I checked were out of stock. I ended up getting it from
weliveoutside.com. When I ordered it they sold it without the steamer insert, but they only list it with the insert now.