Welcome to NICO. Looks like you have yourself a nice project. You can buy pretty much anything at Infinitipartsonline and get actual OEM parts for about half of what dealers charge. It has been my experience (limited) that I saved as much on the few parts that I replaced. You already own an M35 so no need to tell you that when damaged, you can estimate what you 'think' a part would normally cost and then double it, LOL. For example the passenger headlamp. You might think maybe $600 since it has HIDs. But you would be wrong. The dealer will ask about $2,000. A new OEM from Infinitipartsonline lists the factory price at $1,700, but will sell it for $1,300. That's $700 less than the dealer. You will find similar savings on everything, including even bolts. You already know that you might be able to find a matching model at a junkyard with rear-end damage and purchase the entire front end for a little less than any parts place.
Infinitipartsonline has diagrams with all necessary parts outlined and listed by part number so you get a clear idea of what you need.
This will get you started.
https://www.infinitipartsonline.com/v-2 ... ont-bumper