That's a bloody Bunya mate, you know it would be a PITA if you couldn't fell the head out whole, and an even bigger PITA to climb with all those prickly bits. Imagine climbing one spikeless and not being able to cut off the branches on the way up?
Frankly, Bunya's suck! How's the nuts they get, flamin 10kg skull crushers, make coconuts look tame.
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Leylandii Cypress, if you want a 2m to 3m high hedge dont plant a species that wants to grow to 35m like overnight.
Check it out, doesn't do well in USA in some parts
Leyland Cypress - Wikipedia, the free encyclopedia
Personally, sounds like a PITA to me, get Thuja's!