Machine off the internal magazine feed lips to accommodate the AW mags wider mag lips, and have the feed ramp scalloped open wider to aid in feeding from the staggered feed. It's not that difficult.
The AW mag will also need to have a small scallop cut in the front edge similar to the AICS mags to seat against the rem 700's round action base.
I've had mine running for years reliably without issue. There should still be photos in the AW/AE/AICS mag difference thread.
Cheers,
JJ