need some help, a little confused or maybe im not. idk.

ok so ive been wanting to buy some new rims atleast tires maybe in the near future but all i can find are 4+1 or 3+2 offset rims. i dont want to lose or gain an inch because i already have +2 LSR sport arms on my kfx. does anyone know of a company that makes the stock offset? i believe the stock offset was a weird one 4+1.5.. super annoyed by this. if im wrong about any of this please correct me but i feel like its going to suck if i have to gain another inch up front or lose an inch because of the aftermarket rims. i tried to find stock rims online but they seem to no longer be in production. TIA for any help anyone can give me.