Rob, maybe a garbage truck will back into your car and total it. Then insurance will give you an over-inflated amount for the car, and then you can hand them reciepts for your mods and claim even more. Then buy the wreck back from them and part it out to make more $$$.

No seriously I know exactly what you are going through. Just keep the car. Unless something breaks that is literally too expensive to fix. You've already done trans and suspension, etc, what else is going to bust? The resale on these cars sucks so bad that you'll never get even close to what you've put into it. Just run it into the ground.