GH4 accessories

[Lindquist]

Im in need of a good cage, ect , mic, and few other things. for cages I like these

Varvon cage - Honu Cage - Eazy Handle V2

all between $250-320

Also for Audio I saw the irig pre for xlr phantom power will that work fine with gh4 and a xlr NTG mic?
or should I get juicelink riggy micro?

Thanks