RCTgo

So I have a Space Mountain recreation I grabbed on Atari's old ride exchange before it shut down. It's a mini-coaster brand. I also have the Mattatat Space Mountain set but I can't figure out how to build the dome around the ride.

Leaving the queue lines out of it for practice purposes, can anyone help me with how to build the dome around a recreation? If anyone needs to see a screenshot of the track itself, I can take one. Tell me what angles are needed.