if you like the bass that much, don’t mod it. EQ & FX are more versatile ways of bringing, um, versatility. Let’s face it, all the truly great basses have one PUP only; Precision, SC Precision, ‘Ray, Modulus Flea, Ric 4000, I could go on (if I could think of any more single-PUP basses) 😀
But seriously, sentimental value AND a great bass is a rare thing 👍