Need design help for telescoping gate

I have a contemporary residential project in Los Angeles that because of tight site conditions the only driveway gate that will work is a telescoping gate. The internet has not been any help. I found a company in Poland that could do it but the project is too small for them. Companies in Germany, India and Australia who claim they can build them haven’t returned my emails. These companies build clunky industrial strength gates; I’m looking for something extremely elegant with the operating system hidden from view. I prefer a company in LA to design and build the gate. The one LA Company who said they build telescoping gates said mine is unbuildable. If we can direct a robot on Mars to fire a laser at specific rocks, somebody can design a gate, so I am looking for a designer or company who can help me.

The problem is that the gate needs to be in 3 sections at 7’-6” wide x 8’ tall each, opening is 21’ wide. The 3 panels need to nest or stack side by side when gate is open. Code requires 1 foot/ second or slower speed. The motor needs to be on the side or underground, no room behind gate.

Client does not want to see any wheels on the gate, it needs to cantilever or possibly have a support and wheels underground like a SF trolley. The gate needs all the necessary safety electronics and operating system. My wish is that the gate panels are frosted glass or acrylic to match our other walls. Has anyone seen such a gate? I’m hoping to find an existing system rather than having to invent it.