Help Rebuilding this Galactic Enforcer Moc

I found this Galactic Enforcer rebuild another user created about 11 years ago using two of the set plus some additional parts. They posted a good amount of pictures of it, but I'm having trouble recreating it for myself- particularly the backside of the front part of the ship that can detach from the rest of it. Here's the link to the original build: https://imgur.com/a/lego-5874-galactic-commander-6wuWr If anyone would be willing to provide some insight or even something like an LDD file I...