First a little background, I've owned my 1994 Toyota Celica GT since 2009 and have put over 100k miles on it, I love it so much that I've bought a second one, a 99 that I'm using as my daily driver as I start to frankenstein my 94.
I've been sourcing parts, and have grabbed lowering springs, new struts, and a 2001 Toyota Solara V6 that has been totaled. Next is to transplant the engine from my Solara to my Celica project.
Option 1) Run with the Solara EMS, splice the harnesses together and call it untunable
Option 2) Buy a standalone EMS and plug and play away with it
Option 3) Build a DIY EMS with help from those here.
I'm thinking it would be great if I could do a barebones ems that would eliminate any immobilizer nonsense and such, and let me tweak the vvti
Here is a couple of pictures, one is what my 94 looked like when I bought it the other is how it sits today,

Am I on the right path here, I know that a DIY EMS will allow me to add other power adding features later like a turbo,. and it would be awesome to roll with a 1mz-fe Twin turbo, I've seen supercharged with a TRD supercharger but not twin tubos yet.