Roush is going to test your patience...but they'll get it done. My car was out of commission for three months while the guy who did my install analyzed the problems (leaking
oil galley plugs) and got authorization from Roush to do the work and replace the clutch. The same installer had to send someone else's motor back to Roush to get it rebuilt and it must have taken 5 months to get it done.
Stay on them and hold them to a completion date.