I would not recommend bedding the axis because there is too much variables with the rear trigger group. If it shoots, don't mess with it. However, if I were to do this I would suggest only bedding forward from the Barrel nut and about 1" into the barrel for the plastic axis using JB. Buy two of the small tube packages. You may use most of one but it is good to have some extra on hand. Prepare the plastic by roughing up the area forward of the lug and about 1" forward of the barrel nut and be sure to clean with methyl hydrate. Use putty to dam the area in front of the nut so JB does not run forward into the stock voids. and Dam the area from the mag well so goop doesn't enter there too. You can dam the depressions in the stock around the lug to save JB by using putty or other materials. Remember to putty the depressions and gap between the nut and barrel on the barrel nut so you do not get a lock from the JB setting into these areas. And, use release agent on the Lug and area where the lug goes into the action. I would prefer to fill the lug notch forward with some putty to ensure you do not lock the action to the lug and JB once it dries. The main thing is to ensure you have contact with the front of the lug into the notch for a perfect fit.
IMO there is no real benefit to bedding the area rear of the lug or mag well on this type of stock. Make sure you use release agent (I like shoe wax) over the action and barrel/barrel nut. And be sure to apply release agent to the action screw. Use some electrical tape where the front of the stock and barrel meet. A couple wraps should help center and raise this area once the JB Sets up. But this is a pretty flimsy stock so you still may need to sand out the barrel channel.
IMO you will use the action screws to set up the level of torque on the bedding job. So I would apply 35in/lb using a torque wrench when buttoning up the job. Remember JB will and could enter into the action screw area. Be sure to have some Q tips and solvent on hand to do quick clean up of goop running onto the plastic, or use tape to cover the exterior of the stock to minimize clean up.
Once the areas are prepped let your JB set up for a 1/2 hour or more so to minimize the runny nature of this stuff. Apply the JB so it covers all surfaces you want bedded. And then place your barrelled action into the stock. Let sit over night. Remove action screws. Pop stock from action and voila...your almost done. If you do not rough up the plastic/jb contact area you risk the JB pulling away from the plastic on this stock. Other models I have not had much problems with JB but it did pull away on the axis for some reason. Remember to drill out the JB from the action screw hole(1/4" drill should do) if it gets in there. My 2c