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Truxx or Traxda is not really a brand name you see here on the forum.
For spacer levels - HBS / Top Gunz seems to be the favorites. You could also look into Bilstien 5100's or Rancho's Quick Lifts for shock options. Bilsteins are adjustable in height, while Rancho's are a set height, but have adjustable firm / soft settings...
With a 1mm offset I think you can fit that but I'm not 100% positive. I know with a -12mm offset or lower you can def fit a 295 width tire.