As far as I'm aware, the only 3 options still available for a T100 are the Warn Trans4mer , which is a grill guard with winch mount, but it fits over the stock bumper. The second is a pre runner lightbar from Downey Off Road and it also fits over the stock bumper.

The other is from Kennesaw Mountain Fabrication . It's a full front end replacement, similar to the ARB plate bumper. Lots of people have had poor service from Ken Mtn., but the ones I've seen look good. ARB never made a T100 bumper and TJM made two but they're both discontinued.

'97 T100 SR5 XCab 4WD
TRD SC ~ ARB ~ FWC
'85 FJ60 Landcruiser
4E9 ~ locked ~ 33's