need help with lowering my truck

[Baggerjohn]

I have a 67 lwb c 10 pick up. Being on a tight budget, I want to lower the front of my truck about 3 inches without having to replace too many things. Also, I would like to lower the back of the truck about 4 inches. Can I do this without having to c notch it?
Both the front and rear have coil springs. My goal is to have the front lower than the rear but at drive height.
Later i will install disc brakes on front and have to replace wheels and tires but for now I want to change the stance. Any help would be appreciated. Thank you.