There are a lot of different brands of rackcase manufacturers, that offers custom tailored solutions. Some cheaper than others perhaps, but still it is custom and probably priced as such.
I think that it is possible to find an pretty neat solution within the aviable DJ/rack case models that already exists today from different brands. That would work for you.
Problem is to figure out which one that fits your personal preferences best, if there is one. If you can´t find any best option then you´re probably already aware of WHAT you are missing in all these aviable options.
And with that info, you are ready to contact companies that build custom cases. If you don´t know how you´d like it, then probably no one else does either.
In my humble (private) opinion, readymade cases for desktop units seems good theoretically on the paper. But there are as many personal preferences/limitations as there are cases out there. There is no ‘one-size-fits-all’ solution to this unfortunately…
To my knowledge, the latest brand someone shared on this forum:
http://www.odysseygear.com/
And for the brave people (in europe):
[url=“http://www.adamhall.com/en/Flightcase_Material.html”]
http://www.adamhall.com/en/Flightcase_Material.html
Regarding readymade ‘set-and-forget’ solutions, i e connectors, USB sockets etc:
[url=“http://www.vafamsound.com/”]
http://www.vafamsound.com/
There probably exists a lot more similar brands/companies both in US and Europe…