'84 Prelude

i'm not looking to do any performance mods on it, I was hoping that I could squeeze 40-50k more out of it. It says Dual Carb and the manual says its a 1.8 liter. One concern is that it has the original clutch so I would think its mainly highway milage. Its been driven by 1 lady owner. The engine compartment looks very tight, you know if the clutch replacement would involve more than pulling the tranny and halfshafts? Now, the engine now doesn't burn any oil and its been changed every 3,000. So i'm thinking if it does good on a compression test I could get a lot of use out of it before rebuilding the motor.