StihlKiwi
ArboristSite Guru
Not asking the guy to invest very much are you?
Seriously though if he can get a 25 ton excavator around he might as well shovel log it. Maybe put a drum on the shovel to reach some of the softer spots.
Grapple yarders are obsolete.
Maybe they are in the US, but there's still a use for them. Timber, terrain, productivity etc all dictate that.
For interest's sake, have you heard of the falcon forestry claw? Its a mechanised grapple that you can run on tower yarders