GH4 Would this set up fit and work

[flinty]

Would this combination work on the GH4 for long distance stills and video.
http://www.photographyblog.com/reviews/sigma_150_600mm_f5_6_3_dg_os_hsm_sports_review/
http://slrhut.co.uk/product/ID790C11/view
Realy need a combination for long distance wildlife,help would be appreciated.