Suspension on a 61 4x4

[CMMG]

I've got a 61 4x4 that is in pretty good condition with the exception of the 198x step side bed the previous owner tried to pass off. The existing leaf springs have are supposed to be greased regularly, but looks like it hasn't been done in decades. The holes in the springs are starting to get wallowed out a bit. I have a parts truck inbound and am hoping that the springs and pins will be good on it. Is there a replacement suspension kit or a lift kit available that will help ease my current dilemma? I'm not too worried about staying factory, but I don't want to deviate too much either.

TIA,

Jeff