2011 Holiday Special is after that
(Which places everything after it in 2007 I guess)
That would place Hack/Slash/Eva one year after Ash vs Classic Monsters (Eva's first appearance) (though that story probably happens slightly differently due to Ash's co-workers not dying) which might be better anyway. I don't know how they might refer to events in that or Eva's Top Cow crossover though.
I might include all appearances of Eva and Herbert West (Dynamite) since they're a direct spin-off of Army of Darkness rather than a few one-off intercompany crossovers (Prophecy,
Eva Appearances
Army of Darkness: Ash vs The Classic Monsters (2006)
Eva: Daughter of The Dragon (2007)
The Darkness vs Eva: Daughter of The Dragon (2008)
Hack/Slash/Eva: Monster's Ball (2011)
Prophecy (2012)
Vampirella Halloween Special (2013)
Swords of Sorrow (2015)
Army of Darkness: Furious Road (2015-2016)
Actually, I do wonder if there's any places for time jumps throughout the Hack/Slash comics. It might screw up some things maybe, but I don't know yet so I'll just trust you on that one. I know it would screw with the Hatchet timeline, but
technically that story didn't take place in Cowley's swamp, so it could still be accurate that there was 10 years of inactivity between Hatchet III and Victor Crowley, and the only reason he appeared was because "his swamp" was moved to somewhere else. In other words, magic doesn't have to make perfect sense. But, that's for future me to worry about.