Update:
TL;DR it wasnt a scam!!
It really did seem too good to be true. He was kinda vague in his email and texts. Even called him a scammer. He did not reply. His phone number was a NJ area code and I asked why and he did not reply (no big deal...I have a Hawaii area code even though I live in Virginia)
Everything called for it to be a scam
Then after some text exchanges exchanges. We make arrangements for me to come look at it. He gives me address and we agree on 10am today. I get there.
Ring his doorbell. No answer.
Text him. No reply
Call him. No answer.
Getting ready to leave.
Then he texts, "I'll be there in 10 minutes"
(What have I gotten myself into)
About 12 minutes later, he texts me and tells me to meet him at a storage unit right down the road.
I go there and wait for a few minutes. He's not there.
A few minutes later a car pulls into the loading dock. We exchange waves. He doesn't say anything and goes into the storage place. I wait for a few minutes.
And then he wheels out with a brand new never unwrapped Red Sea 525xl! We load it up on my truck. He then takes 2 or 3 more trips to get the lights, sump, cabinet , etc. everything brand new. Only thing that was opened was the box for the sump!
So, it turned out to not be a scam! And I even talked him down to $2350.
So, I'll be doing a build thread on this thing!