thanks for the reply, and being that i will be grafting/molding them into the celica to complete the "clean look" once i find the proper fitting flares, this would be the route i would be going. I've done everything to this celica of mine since day one, including the molding of the bodykit (bumpers/side skirts) and custom paint, so the install will be just a repeat of a detailed process of what i once did back in 2003. I plan on re-shooting the entire celica again because well, 100k miles later it has def seen it's wear and tear, rock chips, and some hairline expansion/cracking along the seams - although you can't see it in pics, only if you were to get right up close to it and i pointed it out (the pics i posted are from just a few months ago - yes, the car is over 17 years old).
I'm also planning on removing the lower side "inlets" of the BLITZ style rear bumper, and custom fabricating the lower insert section (diffuser) of a BRZ rear bumper (preferably the style of the blue attached pic so i can run direct center exhaust) - or rip the entire rear blitz bumper off and go with a BOMEX rear.
all in all, there's a bunch of new custom work i am finding myself wanting to get back into with this celica i still have of mine after all these years...