Sounds very good! I think it depends what your doing. for just timber, a rear mount with skeletal body is best for payload. with the alloy rims and timber pins I can carry 20 tonne with that thing. Mind you the crane is only a 105, not a Z either.
otherwise, I reckon a three axle with a tipper (english word for dump)is more versatile.
otherwise, I reckon a three axle with a tipper (english word for dump)is more versatile.