....I typically surface with less than 300 psi in my main tank on most dives, as I carry a full 30 cf pony bottle. ....
At 90' on that wreck, based on this statement, you will not have enough gas to "safely" ascend to the surface and conduct minimal decompression with an OOA buddy. This really (and no offence) exposes you total lack of knowledge on what you are planning.
Second, all of you equipped and trained to deploy a 7' long hose when in the swim thru if you have an emergency?
You really need to (a) get more training; and (b) watch videos on "the normalization of deviance", because, there is a really good chance you will do this dive, everyone will have fun and all will be good, but in reality it will just re-enforce unsafe practices and mindset.
And most of us, including myself, are not busting your balls, many of us have "been there done that" and learned from our mistakes, and have years of experience doing these dives. Many of us started diving before the internet, there as no "group" we could ask and learn from, we did this stuff on our own, and learned by our mistakes, I am horrified when I look back at the dives I did in the late 70's and even into the 90's when I got into "tech". As my Trimix instructor said to me day one of our class in '97, take the cotton out of your ears and put it in your mouth. I listened.