Getting ready to sell my house toward the end of the month and, of course, that means doing all the shit I've been putting off since I bought it. 
One of those things I fixing the parts of my driveway that are all cracked to hell and sinking/heaving. If it were just cracking, I would have left it, but I had places where there were 3-4"+ lips and I know that'll ding me when I sell.
I was fairly confident it was from my neighbor's trees' roots and I started tearing shit up today and confirmed my suspicions.
Obviously I plant o dig down to any roots I see and cut them out. Right now the plan is to go down a few inches and put back a nice base of ABC/crusher run, but you know the roots will just come back.
I was thinking about putting a couple hundred pounds of (water softener) rock salt down before I put the base in. I figure that might help a bit, but I doubt it'll stop the big ones.
My other plan was to rent a mini ex or a trencher and dig down a couple feet at the edge of the driveway to cut all the of the roots and then put some kind of root barrier back in there. Not looking to spend a ton of money, but I'd also like to do it right for the next owner.
Taking the trees down is not an option...though maybe whatever I do will lead to that!
Ideas/suggestions I'm not thinking about?

One of those things I fixing the parts of my driveway that are all cracked to hell and sinking/heaving. If it were just cracking, I would have left it, but I had places where there were 3-4"+ lips and I know that'll ding me when I sell.
I was fairly confident it was from my neighbor's trees' roots and I started tearing shit up today and confirmed my suspicions.
Obviously I plant o dig down to any roots I see and cut them out. Right now the plan is to go down a few inches and put back a nice base of ABC/crusher run, but you know the roots will just come back.
I was thinking about putting a couple hundred pounds of (water softener) rock salt down before I put the base in. I figure that might help a bit, but I doubt it'll stop the big ones.
My other plan was to rent a mini ex or a trencher and dig down a couple feet at the edge of the driveway to cut all the of the roots and then put some kind of root barrier back in there. Not looking to spend a ton of money, but I'd also like to do it right for the next owner.
Taking the trees down is not an option...though maybe whatever I do will lead to that!
Ideas/suggestions I'm not thinking about?