First up, $1300 RRP for a Pike or Bomber DJ is ridiculous.
Annually, at the minimum, you can purchase long travel 27.5 forks for $500-750 new or less as takeoffs, e.g. Z1, 36, Rev, Pike, Yari, Zeb.
What are the best of the currentish crop of air spring trail forks to feasibly slam to 80-90mm...