I have a 97 sc400, what radiators are out there that will bolt on? Besides oem? I don't need the transmission cooling lines since I did a manual swap on mine.

 

Outside of original OEM for the 5-speed model any replacement will have the cooler integrated simply leave the dust caps on them or run a dummy cooler line. I've installed this style rad on a few Toyota's they look nice but I don't see any other benefit.
https://www.ebay.com/itm/364622620608