Recently acquired a mid 80s fuji frame with the 414 butted tubing from someone on CL, and currently I'm in the process building it up. however, I'm having problems finding a proper cartridge BB.

The old spindle taken off is marked 3t and checking on sheldon brown's site the modern symmetrical equivalent is 130mm, (for a road/mountain triple?) the crank I have planned for this bike is a double up front and 8 in the back.

Since this bike also came with 700c wheels that were too big to fit the frame. I can only assume this was a project bike that the previous owner tried to put together but abandoned.

Which cartridge bearing bb can I use for this setup?