i agree with all of those, tho i can see number 1 causing some problems with the amount of items being crafted in game. maybe a 5 chance to have 1 good ore or mineral? i like it because it would put less pressure on players to buy a 70k+ base when they could buy a workbench solo, or atleast make it so theres a way players can do things without a gang.
as for the map, maybe you can show it to someone and they learn where the mine is and then give it back so it be easier to hang on to(you could still die and lose it tho).