Honestly you seem pretty well set until the next overall upgrade starts lowering the prices of 92s. I would get a WR3 and keep stacking coins til you have enough to buy some higher end 92s or 93s when they are Champions in sets. I would suggest for WR3 getting someone like Mark Clayton, Ja'marr Chase or Kennan Allen. All are below 200K and reach the 90 SRR and DRR thresholds.