You're not going to have much luck finding 2" lift shackles for sale used since they're very, very rare. Cornfed sells them, and Roger Brown can custom make them for you.
I have 2" cornfed shackles that I never installed. I got them about a month ago brand new from cornfedsuspension.com
The reason I never used them was I was going to do a aal/shackle combo, but I couldn't find anything for the front to match and I decided I didn't want to go that high.
TTORA forum is the best Toyota off-road club around. We are nation wide with chapters in most states. Come in and discuss Tacoma, 4Runner, Highlander, & TRD models.