just curious how you replaced the plastic clips with the titanium bolts. Did you replace Oem plastic clips with ones allow that allow the bolts to screw in?
Your looking for the te37 sagas. They have similar offset and size in 18”s
Hub rings can be found on Amazon but I never used them and never had an issue. Make sure to equally tq the wheels off of the ground.
who cares? If you love the car and want one, just buy it. If your asking this, the Supra probably isn’t the right car for you if your worried about value retention.