that suspension mount was from BigWig.........but installed at a reverse position.........
here is one of my BigWigs..........& this one was sold to a nice collector (bro James) last year... ...
Correct, that parts come from BigWig. But actually that is the non-use parts from Boomerang! i just used it and did some modification.
Also have some special parts needed to be installed to the "A Arm", i just used SuperShot as reference.