You can still buy EST over at L-S. I have it from both L-S and here, and I think they are comparable. I might buy another soon, as I’m close to being out of SoE/w and need more!
As far as increasing your bond and decreasing personal space, I think you’ve got good starters. Maybe consider adding some straight betanol to your arsenal. Possibly some P99, which Tisha just reported on recently.