3rd gen montero control arms on our trucks and whre to get coils springs ?

Ok so i know the upper control arms from a 97-04 monty 4wd will fit the 1st gen monty's but does anyone know if they will swap to the trucks even if its 2wd ? the only benift from these arms are if your truck if lifted they give you more room for camber correction and instead of the metal on metal shaft you get real live rubber control arm bushings helping with ride quality.. also does anyone know where to get new coil springs ? my 80 is sitting pretty low and bottoms out easily and i'm looking for stock replacements or maybe a 1 o 2 inch lowering springs . Are all the springs the same through the years ?