I don't know how you managed to get 70,000AM. I got 110,000 for AKL-HKG-FCO return economy. And I assume there's no availability for that from CX.

AM/MPO agents are not that helpful.
In your case, they won't proactively offer up partner airline routings (unless it's direct).

You need two tools, both free:
1. The oneworld map http://onw.innosked.com/
2. A British Airways Executive Club membership https://www.britishairways.com/trave...club/_gf/en_hk

But it's not easy. Neither FCO or AKL is easy.

The innosked map only suggests AKL-HKG-FCO as a routing but searching the number of airports I can get to directly from AKL I identified KUL as another likely candidate for redemption (being the home base of MH).

I came up with the following itinerary with BA.

2 Sep AKL-KUL MH130 1315 2020
2 Sep KUL-LHR MH2 2340 0550
2 Sep LHR-FCO BA560 1245 1610

18 Sep FCO-LHR BA571 0655 0840
18 Sep LHR-KUL MH3 1200 0735
19 Sep KUL-ALK MH133 0845 2245

Ugly, and I wouldn't want to find another one. But this is all available for at least one passenger in Economy.

It's a oneworld redemption of approx 25,743 so it should require 130,000AM http://www.asiamiles.com/am/en/redeem/charts#2 . You are allowed five stopovers, two transits and two open-jaws but you can convert two unused stopovers for the two extra transits required for this itinerary.

I wouldn't expect any AM/MPO agent to be able to find it. But I expect them to be able to book it if I see it in BAEC.

edit 17:08 - oh, one way...