To be manufacturing the exhaust system is a sign that you are nearing that stage when you can turn that key and start your engine.
This is a stage I am also at.
A couple of questions that may assist me.
(1) The collectors appear to intrude into the silencer. Was this fabricated or were you able to purchase the muffler with the collector protuding?
(2) Were you able to tune the pipe lengths to equal length with the crossover system?
Your exhaust sytem looks neat and tidy and would be the talking point when lifting the back clip.
Cheers Glayne