• only connect to another admin gate (with specific address so you can have more than 1 set)
• no fuel/time limit
• no DHD/iris or DHD/iris is ignored other than maybe the dial button
• chevron upgrade auto added
• option for redstone control for close/dial
• option to overwrite "one way travel"
• could potentially be another base block that is creative only or interacts with a command block?
• maybe the base block auto creates the whole gate without the chevron/ring blocks being required

I've begun working on this functionality. I really think you'll like what I have planned.

This feature has been implemented.