will i need to convert my celica to an awd to complete this swap?
Make sure you know how to pass smog test without EGR. JDM engine doesn't come with EGR and EGR port. And yes, you can install it but you have to drill /machine to make it work, not worth it.
Also, you have couple choices of ECU. (JDM, USDM, and stand aloan) You can use JDM ECU as long as you are able to find higher octane gas (which is difficult in CA) If you use USDM ecu, you will need to disable the error code for the missing EGR. If you go stand aloan, you will be OK.
Swap isn't impossible but it's easy either. It takes time and money.
Are you familiar with the 3sgte engine? Which generation of 3S are you going to use for the swap?