My 100% Brett beers (2ea L, 1ea C) have all gotten to their TG (about 80-85% AA) in a month or so. I've let them age out another month, so typically two months before they hit the bottle. Once you have a stable gravity, don't be concerned with bottle bombs.
But, I would certainly hang onto many bottles as they age very well. OldSock just tasted his last bottle of Mo Betta Bretta clone that was 2+ years old and he said it held up very well.