Thanks for your response! I was picturing that I would build my own clock manipulation modules and hold them in the lower part of the case. But that is a good point about LFOs, and effects processing. I'm a bit worried about lack of delay/reverb on my independent voices, as well.

What is different about the Intellijel tile units? Are they still 1U?
Are there 1U pingable LFOs you can recommend?

I'm building my case by hand, and can accommodate whatever layout.