I too am keeping it simple while saving for the Rock River RA-R15. I currently have a Springfield XD .45 service for the house and carry a Tauras PT145 .45 on th hip IWB & a Kel-Tec P3AY .380 on the ankle for conceal carry. My only other purchases are going to be the Highr point 9mm carbine amd a shotgun. I too am leaning towards the Remi 870 or the Mossy 500. I have done some research on the Maverick 88 which is made by Mosseburg and will take a Mossy 500 barrel on it and it's only $176.00. I seen nothing but good reviews on this thing so I might get. I got the XD amd Taraus mainly for it's stopping power but I believe when the **** hits the fan 9mm, 7.62 & .556/.223 are going to be the best survival rounds. I also have a Mossy .22 tact rifle for hunting small game if we need to eat. I also believe the .22lr will be a good barter round. One thing to consider is getting a good compound bow for hinting for survival needs, you save ammo and won't give away your position. Good hunting my friend.
"Democracy... is two wolves and a lamb voting on what to have for lunch.
Liberty ... is a well-armed lamb contesting the vote."-- Benjamin Franklin