Had to buy - '77 Suburban

[Willowrun]

Last thing I need is another vehicle to house but I just couldn't resist buying this from the 2nd owner who had it 4 months. '77 half ton Suburban. Interior is perfect and everything works. Original owner took very good care of it and I have receipts for everything. I believe it has 111K on it.
Now I need to figure out what to do with it. It needs to be lower and the whitewalls have to go. I don't want to take away from it's originality though. Suggestions on how to lower? I have three 1/2 ton 2wd squares (this, '77 Jimmy, '84 swb C10) that all need to be lowered sooner or later and I think the Suburban needs to go low first. Thinking drop spindles and possibly cut coil in the front. Rear is where I'm concerned. Not wanting to notch or do a flip in the rear though. Rear lowering springs? Suggestions on where to purchase are welcome too.
Some pics:

At PO's house