Dude...ok I’m a diehard GNR fan. Like as extreme as it gets. My all time favorite band.in my earlier years of playing I’d go through phases where I wanted to sound just like my influences.At the end of the day it’s just a phase.a couple months down the line you’ll be in another phase.i suggest you focus on your playing and the tone will come.different music and different bands require all kinds of tones.Youre talking Duff,lemmy and cliff hybrid tone and you’re saying GK is out of your price range. What is your price range? Because it’s not gunna be cheap for what you’re trying to accomplish as far as your gear goes. Start off with an amp that has a good EQ and OD channel. Fender Rumble combo amps or affordable. Maybe get a darkglass pedal.Thats a start. Probably within the 550-650$$ range. That’s just some basic stuff. Take your current setup and learn about gain structure.learn about adding and scooping mids. You’d be surprised. I spent hundreds and hundreds of dollars trying all different brands, amps,preAmps,poweramps,Rackmount stuff,cabs etc. less is more. I have my bass and amp and nothing else. I don’t use any effects, no preAmps nothing. I’ve owned SVT,V4B, various pro series, BA, all the modern portaflex pf 350 and pf 500.the Ampeg pf series is junk btw.youll have issues. Ive owned orange,trace elliot,GK,Fender,Hartke and so much more.less is more,less is more,less is more.my current Rig and best rig is a fender Rumble 800 head into a Fender Bassman neo 610. I use dimarzio DP122 pickups and round wounds. I get all the tone options I’ve ever dreamed of.i used that 30 day satisfaction return policy for so long at GC. Do you’re own thing