Check Guitar Center's used site. 45 day return policy and if you bring it back to GC they refund everything except for handling I think, which is like $25 maybe. For what you're looking for it seems like you want something that chuggs but still has musicality to it for the single note At The Gates stuff. To me that's going to be a Mark series (IV or JP-2C), Diezel Herbert, VHT, or KSR. All do the same stuff just do it differently. Mark- Tight, higher mid focus, pretty wide sound, super smooth on the neck pickup for leads, saturated without being excessive. Great clean. Herbert- *insert Trump pic* YUUGE. Bottom end could potentially kill you. Smooth mids, super saturated on CH3, CH2 is similar tone but less saturation and compression. Low mid focus. Great clean. VHT-Super Tight, super clear, not a lot of saturation, but boosting helps. Good usable lowend, better with a boost for leads, big sound, cleans are ok. KSR- Similar to a Mark when it comes to saturation (Colossus, Gemini has extra gain stage) and the smooth leads on the neck pickup. A little less clarity than the VHT due to more saturation and rounder tone. Tight without being bright. Low end, mids, and gain texture similar to Vintage mode on a 2ch recto. More of a narrow sound compared to the other amps but super thick. Great clean.