Just out of curiosity....I may be way off.....
If I buy a 110 long action stock for a current center feed action...and buy an AICS bottom metal set up...I could just drop my action into that and be done?
I believe you would need to have a bit of the action milled at the rear of the bottom opening for the AICS magazine to sit up high enough for the bolt to strip out the rounds.
You also may need to create some clearance for the side bolt release.
Otherwise, the action screw hole spacing is the same.