I need to gather all the necessary bits to make my 3 door comply with US83 emissions regulations (ie post 93 setup)

It already has a L8 ecu, but is there a pre 93 and post 93 type?

I also need it to run a lambda sensor and standard injectors.

so I guess I need:

the right ecu
standard chip
4x4 (blue) injectors
2 bar map sensor
lambda sensor
and a cat

Is there anything else needed and is there more than one type of L8????