I'm wanting to get an MCS-T to replace my current factory stock on my rem. 308 VTR bolt rifle and replace the factory trigger. I would like to get the MCS-T with the mini chasis and a rifle basix or timney trigger with the safety. My questions are: Will the manners come with the small cutout(inleted) behind the bolt assembly(action); on the stock for the thumb safety? Or, will it have to be done after I get it? Will I have to have the action worked on to move the bolt release from its current location(near the trigger) to the side of the action, or is there another option? I'm new here, if my terminology sucks or is wrong correct me. If my question are unclear let me know. Thanks in advance.