Gravel Driveway

[Fireman]

Getting ready to build a new driveway. I've studied others in the area, and been pondering this for a while.

Its in coastal SC, Charleston County. I have about a 100' section that I have to cross that stays pretty damp. It has about 12" of topsoil and organics before I get to a clay. The clay is not the most solid but it stops the shovel and I can tell when I've hit it and I know that is where I need to start. Here are my options, question is which will fair better since I need to build this spot back up over a foot. I'm probably over thinking the whole thing, but its a substantial investment

1: Dig it out to clay, put in 6-8" of #2 stone, then 57's, then crush n run.

2: dig it out to clay, lay geotextile fabric, then add 6" of road grade fill dirt, then #4 or 57 stone topped with crush n run. (this is the route I had planned due to the dirt being cheaper than gravel, but I'm open to either)

I will have drainage ditch on both sides, and 2 culverts to divert the water down to a creek. Its through an old pasture that will be a homesite. Once I get up past that initial 100' its good high ground with only 6" of topsoil and organics. I'm much more confident on my abilities once I get out of the damp area.

This will mostly be built using Nucor Slag stones.