[Shop-talk] Riding mower plus?

[jamesf at groupwbench.org]

I have about 1/4 acre of land to take care of. 2/3 is mowable green 
stuff, 1/3 is rocks. Rather than give $4500 to a landscaper to remove 
the rocks and plant grass I figured I could buy a machine and DIY it and 
come out with something nicer.

I need to rake the rocks out of the subsoil that was replaced when I had 
the sewer pipe put in. This is New England so there are a lot of rocks 
but none bigger than my head.

I need to spread topsoil or manure over that area. 

I need to dig a few 8" x 48" holes for deck expansion footings. 

I need to mow the grass.

Is there a machine that will do all this? I can find a riding mower, or 
a big PTO tractor, but it seems I need something in the middle. Riding 
mower with rake and then just rent the hole auger? Does such a machine 
exist?

thanks,
jim