Hey, i've been playing for about 6 months (doesn't seem long but i can play pretty much any song not using tremolo a whole shit load at the correct pace), and i play mostly metal. I really love the death tone, specifically chuck's guitar tone. I'm using a Schecter S1 Elite, (check it here:http://www.zzounds.com/item--SCES1EL), and a shitty fender that came with my old strat. I'm playing in a band right now, and my shitty mk2 metalzone just ain't cutting it. Getting really sick of that cheesy sound. So as I was saying, i'm looking for a new amp and i'm kinda strapped for cash. I have about 400$ to spend, and from the amps I've looked at I can't get the tone I want. The closest thing to what I want i've seen so far is the avt 20 but for the size and volume of it it's a little pricey. I found a couple old valvestates and they sound exactly like what I want but they're a little too pricey for me (1300$). You guys think I should replace the seymour duncan h101 pickups on my schecter with some emg 81s and 85s, or an 85 and a dimarzio x2n, or could someone suggest an amp to check out, or should I just wait to save up for something a lot better?

Also, i feel like i might wanna modify my guitar in the near future, if anyone's had the same guitar I have, could you give me some suggestions on what I should do?

Other tones I like include vader, slayer, callenish circle, napalm death, decapitated, fleshcrawl, and deicide