FWIW, here is a pic of my Hooker comps (1 5/8" in 3" collector) before I installed the 3" exhaust from Summit. Looks to be in the same position as yours, but maybe move forward 1" or so, and with the flange rotated as well.
LOL!. Maybe dude at TTI was right about the Hooker stuff. Looks like your collector flange is rotated significantly in the opposite direction of center from mine. Crazy. So, probably my bad.
From looking at it, the TTi deal would likely fit your headers.
I think if it really is that big a problem they should sell the thing without the flange being welded in place. Either a floating style deal or just "welding required".
I'm butchering mine today. I'll let you know how it goes.
I wish any of this Mopar stuff came with ball and socket connectors on it. They aren't maybe as optimal for max flow (as if any A-body header was), but they sure to remove a lot of BS hassle.