Replying to Dragging Feet, Need HELP on Final Decision

Here is my situation, I want to buy a new DSLR, primarily for video. I'd LIKE to spend under $1000 on the camera body. I will use it primarily for skiing, hockey, and everyday life.

Right now I have it narrowed down to Canon 60D or 70D, Panasonic GH3 or GH4.

Canon
I work for a hockey team that uses all Canon equipment. I would have access to 8-10 Canon lenses from them if I wanted to borrow any, plus a few I own myself. The 60D is a great camera. 720p at 60fps, easy to use, I have used it a lot before and am comfortable with it. It also comes in for around $700
The only major advantage I see to the 70D is autofocus, which I would hardly use anyways, so I'm not really leaning towards that one, especially with the big jump in price.

Panasonic
I am actually really starting to lean towards this option. It seems to be the best quality at the most affordable price. BIG advantage is the higher frame rate at higher quality. If I had more to spend, I would definitely get the GH4, but it's a little out of my range at this time. Although the 4K would be great, even if editing at 1080 and having that freedom to zoom in while editing.
The downside is the lens situation. I know you can get an adapter to use Canon lenses with it, which loses the autofocus, but like I said, not a big deal. Has anyone had experience using Canon lenses with a GH3 or 4? I would probably end up getting a few Panasonic lenses eventually as well.

So as of now, leaning:
1. 60D or GH3 about equally
2. GH4
3. 70D

I'd like to have it relatively soon to be able to use over the summer. Should I go with the older, but still very acceptable tachnology of the 60D or GH3.... or wait and keep saving and get the 4k capability of the GH4?