As others have said, you need to start with the mount for your magnified optic. The height probably isn't optimal, and you've also bridged the gap between your receiver and rail. Some folks can get away with that, but I've personally experienced issues with zero shift and given that you need a new mount anyway you might as well fix both issues in one go.
Larue and
ADM both make really solid options.
For your t-1, reference Trident's set-up, or mine shown
here (which also gets into how far forward or back to place the t-1). The Larue offset works well because it aligns properly with the bore. LMT showed off a new offset
mount at Shot that does the same. There are other mounts and, again, some folks can make them work just fine but those that don't properly align to the bore are a bitch to zero and can generate weird POI shifts at different ranges.
The last advice I'd give is to spend some time swinging your rifle offhand and try to honestly decide whether it is in fact viable as a general run-and-gun rig from a weight perspective. My SPR is right on the edge, weight-wise, and your rig looks heavier than mine.
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