DIR gear questions

How do you obtain DIR style gear, such as regulators? Do you buy hose
kits from Halcyon, or do you have your hoses custom made?

What brands/types of regulator meets the specification for being field
stripped under water?

>From the GUE web site:
"The second stage NEEDS to be able to be stripped under water, just in
case there is debris under the exhaust valve or it has moved (i.e.
folded back) causing the second stage to breathe wet. As such, the face
plate needs to be removable without any tools, while wearing gloves."