Disc is just one step in the process, there's a chance I might borrow my brothers Ford 7000 and 8' tiller, that would probably save time... A disc is better on the ground than a plow for compaction from what I've heard, it takes some time though, if you corner with a disc it can make things worse if always in the same direction. Conveniently my disc is a Massey Furguson that is independently adjustable front and back. The front gangs do the digging and the rear push it back to the center so you can fix or cause several things... depending on the 3 point angle and the two angles it should be much better than the ancient pull type that just had 5 settings, not to mention it was bigger than my tractor could handle...
My plan is to disc to get everything dead and rotting, in a square pattern then 45* from there and probably the other way. That should hopefully get it broken up, then the spring tooth, then take the box scraper around and drag the dirt around to where it needs to be, might need to spot disc from there depending, then drag the 8' wide scraper thing around, mix in the chain harrow and spike harrow depending on clods... I hope to get it flat enough for RC airplanes too, I think I flew a glider here once and that's it, I need to get the planes out again...