Got her finished today. I passed resistance checks, then blew the fuse. After going back over the steps I found the issue, had a rectifier in 22L instead of 21L, fixed that, cleaned up a couple of spots, new fuse. It passed voltage check perfectly and sounds great.
Thanks for all the help here! I'm sure I'll have more questions, I still need to install the upgrade but I'm going to sit with this for a little while first to get a better feeling of how it sounds.