Wet joint snails maybe machine and turn at the wet joint? Or maybe weld up a stainless snail to fit better? Silly idea, but could you swap them and put the snails forward? I suppose no power steering is worth a try, find the happy spot with the trim tab. Worse case go external on the drive, but which is more cost effective, different exhaust or external power steering. You're making great progress, I kinda like the cardboard exhaust mock ups, I generally just cut and tack tubing, then remove for final welding.