Okay so I've started a new project. The music isn't very technically engaging as the idea behind the sound lies within inspiration from metal bands such as anvil, jaguar, raven, venom, ect ect.. I want to get an old school sound for my music, but with massive crunch and distortion. Kind of like black sabbath with a death metal edge I guess. I was thinking for that I could used a ring modulator, a treble booster, and perhaps a metal master digitech distortion pedal? Problem is, I own none of these things, and I am also not made of money.

So...any suggestions on affordable versions of these things? I am definitely gonna go for the metal master pedal for this project as I can swing fifty or more bucks for it, but I am to understand that a ring mod and treble boost are in the hundreds.

Also if you have any suggestions on what gear to aqquire to get a mega heavy old school metal sound, that would be greatly appreciated thanks.