Most engines with moderate size turbo can run upto 10 pounds safely with a proper tune.
However that’s a lot of money to be spending to gain moderate gains from sub 1 bar of boost.
Also you’re likely going to be running into some emission issues being OBD2.
I suggest keeping it a nice DD and picking up any typical OBD1 project to make fast. They will already be lighter (makes everything better, MPG, power to weight, handling), plentiful parts for cheap, replacement and aftermarket, no emission issues and no hurting the resale of your DD.