I can almost guarantee you're not going to reach the place you want to reach with a trip sitter. IME they always ground you to an extent that disallows truly transcendental experiences.
OEVs will not matter to you in that state of mind.
If you want to go the farthest you can go, have a playlist lined up of ambient albums that are journeys in themselves, and as soon as you take them, start meditating with closed eyes. Next thing you know, you will be in hyperspace.
However, the way you phrased your post makes it sound like you are not that experienced with psychedelics and reaching the truly far out points these drugs can bring you too. Do realize that while six grams is going to be intense no matter what, it's not a guarantee that it will be a blissful trip into the cosmos. It could easily turn into one of the most hellish experiences of your life. When I had reached about the three year mark from starting to use psychedelics, and had at this point tripped 25+ times on LSD, 4-aco-dmt, DMT, and 2c-e, I took an eighth of shrooms, brokethrough to hyperspace exactly like DMT, and ended up having the most hellish time of my life. Of course, my life was in shambles at the moment in terms of real world criteria. My grades were all failing in university, my friends and I were friends just to get high, etc. But still, it can turn on you so easily. It was so blissful for the first hour of hyperspace, then an odd, completely out of nowhere event happened, and everything spiraled down from there. I literally could not even be around and socialize with my friends for the remaining four hours of the night, along with a good portion of the next day because of what I'd experienced.
Please realize what you're getting yourself into with six grams. It is not to be taken lightly, in any sense.
EDIT: After re-reading your post, you seem to mention visuals the most out of anything. If that's what you're after, six grams of shrooms is not how you want to go about that. Shrooms are hands down the toughest psychedelic to handle when it comes to bad trips. They will turn you sideways and fuck you in every orifice imaginable. As much as I hate to generalize, it sounds like a bad idea all around from what I'm getting from your post.