Peavey Bandit 65 - opamp upgrade - $300 (Highland)

If you're reading this, you're probably familiar with these amps.
I think this one is from 1987.
Great condition.
Everything works, no hum or noise - it's dead quiet, which is nice.
I upgraded the first gain stage opamp with a 1982 Made in Malaysia RC4558P of the kind used in the early Tube Screamer pedal.
If you want the original opamp for the sake of having it 100% original let me know - I still have it.
12" Scorpion speaker.
Spring reverb.
Loud as all hell.
Great amp with years of use ahead of it.
Will try to answer questions but savvy buyers will know what they're looking at so there won't be much time.