How should I lower my 60 Impala?

I have to remove the coil springs to cut them and the new springs are affordable so once
I decide how much to go lower ill end up buying the new springs. It's so still now I can't
imagine it settling at all....... We are excited about getting it back on the road. The taillights
are 59 Bonneville. When I bought the 60 twenty years ago it had to have a Merc grill,
Bonneville taillights and a 59 Chevy front bumper. I'm on my way.... Thanks again for the
help.