[Frank the Thank]

Hey
I m planing to do a New Zealand hunt for tahr and possibly chamois with rifle
at Xmas and New Years this year
I know which area I want to hunt, I know the airport I need to go, I know about the hunting permit and firearm permit.
Is it realistic to bring back 20 kg of meat with Me on plane?
Is it possible to bring back skull and horn with me on plane?
Same question for hide, but might already started to shed hair at this time of year...
Also, how is it recently with the pesticide(poisoning) program for tahr hunting on public land?
The more info I get, the better, so please share any experience or knowledge about my question or the situation of tahr in New Zealand.
Thx
Frank