I searched the Kamerar website, and they do show the "Pico Plate" for about $40. , but from your shallow depth of field left side photo, I can't tell how you connected (and with what Kamerar parts) the horizontal 15mm rod behind the 7Q to the two forward facing female upper holes on the Movcam cage.
Looks to me like standard 15mm rails coming off the handle, to this piece.
Then, two 15mm rails in an L shaped, paired together with this corner block.
Not a bad setup, a little too limited in range of motion for my tastes. Then again, I am using the Solid Camera solution, which I'm planning on shooting a little video of soon to show the different ways I set it up.
I do want to take a second though and say that I'm pretty amazed at how light and well made the SmallRig stuff is. I have darn near one of everything they make. NATO rail, handles, quick release blocks, corner blocks, 90 degree blocks... I'm a pretty big fan. Don't get me wrong, I have a small fortune invested in Berkey System pieces, but if I need something cheap and fast (Prime shipping!) then SmallRig is my go to. Hell, I helped a buddy build a DSLR rig from their parts and he ended up spending under $200 for rails, handles, blocks, offset riser, shoulder pad... Pretty awesome deal.