Looks like you are E sensitive like me.
Albeit E2 is on the higher side - it is still within the range. If the lump is 'under control' - Letro might be an overkill.
I would run Aromasin 25mg/day + 20 mg/day nolva & lower the Test(maybe ~ 200mg/wk) till the lump is gone.
From there maintain at 12.5mg/EOD, drop the Nolva and bring Test back up.
Another thing, being E sensitive myself, I always recommend pharma grade ancillaries (AI's, SERMS etc.).
Trust me, its worth it! G/L!