Interesting categories. In typical leagues, I'd trade Wall for Gasol or Horford almost no matter what my roster composition was.
But I see that you don't have fg% as a category which definitely makes Wall a more favorable player. But it also has rebounds counted twice, which leans it back toward the big men to be acquired...
How many teams in this league? If its a 12 team league, big men can be hard to come by, especially a young keepable one like Horford or Gasol. In which case, I'd absolutely trade for the big guy since you already have Curry and only 1 good center so far in Bosh.
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A side note: So you have fgm, 3ptm, ftm, AND points all as separate categories? 4 of your 10 categories are directly related to volume scoring. I don't really like this set up so much.