$1.5m for assistants would put us in line with Utah State, New Mexico, and SDSU
$2m total is in the range of Boise State, South Florida, UCF, and Cincinnati
$2.5m is bottom-tier p5
$3m is low- to mid-tier p5 (except for Wisconsin)
$3.5m+ is elite programs
Anywhere between $1.7m and $2.3m total for BYU would not surprise me.