The triggers below will get you as close to a Star frame trigger as possible. But I would keep looking for a Star frame. I have seen three pop up on here in the past 5 months.
Critical Alter EGO/ Etek 06 Trigger: This one has a magnetic return
Violent Series - 06 EGO / ETEK Trigger :This one has a smoother face, but no magnet
Planet Eclipse Etek
w/. Star frame, 08 Ego expansion board, Etek 3 regulator, Ego10 OOPS ASA, SLS Cure 3+ bolt w/. inserts, Zick kit, Kila detents, Ego 5/6 clamping feedneck w/. Ego 11 lever and Violent thumbwheel, PE red laser eyes, Shaft 4 barrel kit w/. all backs and fronts, both Bump pistons.
V3 Dye Rotor w/. Virtue board
114/4500 Carleton w/. Myth reg
Ego/Etek Parts FS/T