I think I am finally ready to take the plunge into getting a rack setup but I also like the VHT 50 cl pittbull alot too. I mainly play metal/death metal. If I got a rack setup what would be the right preamp to get and effects unit? my budget for those is 800$

also which do you think would be the better route to go for the best tone? Getting a head vs. getting a rack setup?

please tell me what you think.