Get the GH4's little brother - the G7 at a bargain price with the 25mm f1.7 by redemption (worth about $300).
4K video for under $700! Video quality is on par with the GH4 just lacking some features (V-log, Headphone output) but has most of the important ones (focus peaking, zebra highlighting, mic input etc).
Probably better cameras for stills quality (A6000 for example) but unbeatable if you're into video and you're on a budget!
Don't forget 3% cash back from cashrewards (worth another $20). You could probably flog the lens off for $200 if you don't need it bringing the body cost down to $440 (or $420 after cash back). 4K Video for $420!
Terms and conditions for lens redemption here:
https://promotions.panasonic.com.au/bonusgifts/TnC.aspx
Key points:
The offer commences on 01/11/15 and closes at 11.59pm (AEDT) on 10/01/16 (‘Offer Period’).
To be eligible, participants must: (a) Purchase any of the above stipulated LUMIX cameras or Panasonic Camcorders from a participating Panasonic retail outlets or redeem through a point redemption program during the Offer Period; (b) Complete, in full, the official redemption form at www.panasonic.com.au/bonusgifts; (If you do not have access to the internet please call 1800 023 836) (c) Write your Claim ID on a copy of your purchase receipt and post the copied purchase receipt in a stamped envelope to: Panasonic Bonus Gift Promotion PO Box 6544 Frenchs Forest NSW 2086 or scan the purchase receipt (with your Claim ID written on it) and email it to [email protected] or upload it during the claim process.
All claims must be received by 11.59pm (AEDT) on 31/01/16.
or for about $100 more, you can get GX8
https://www.ozbargain.com.au/node/222148#comment-3242992