tbh with ramps it wouldnt be anywhere as near as hard, on the floor/axle stands = no fun.
I did mine all from the top in about an hour/half,my tip was second hand and had been cut short already so was a bugger to stop it sliding off when tightening the jubilee ,I found the dv and hockey puk had to change places so the pipes were at a stretch to reach there new location,but glad I did it as its made such a difference.