I asked this awhile back but no answers. I need a cage that will handle the X70, external mic with suspension and dead cat, SmallHD 5" monitor, Juiced Link mixer with three inputs and a Zylight LED light....whew.
I have a frankengrip now but it is awkward to reach the focus ring and I can't open the viewing screen all the way.
I have designed one on paper but it will be VERY expensive to have it fabricated. Cheeze, someone needs to bring this to market!

Have you contacted Wooden Camera? The guy who started the company, Ryan Schorman has a ton of experience and a ton of products.

https://www.linkedin.com/in/woodencamera

If you could find the inner dimensions this looks a nice setup. https://wholesaler.alibaba.com/product-detail/FOTGA-DP500III-Multi-functional-ENG-style_60412245857.html

Thanks guys!

Take a look at what Smallrig offers in components for constructing your own rig.

The quality is good and the prices very good, and they have a huge range of components - you can build a rig of almost any dimensions.

In the UK, Amazon are the best stockist.