Why no Engl amps? I mean, I don't care for a Fireball or Powerball either and I sold an EL34 SE, but the Savage and maybe the Inferno and Artist Edition would be right up your alley.
The Invader probably not; while CH1 is one of the best clean sounds on a high gain amp (other ones I loved: Mesa Mark IV/V and Diezel D-Moll) and Channel 3 does the Göteborg thing pretty well, CH2 is probably perhaps slightly too thick and polite for your modded JCM800-desires. It does have awesome gain and saturation. CH4 is too loose and saturated though. I hardly use it.
And like someone else already commented, most Diezels can definitely sound more processed (in the low mids particularly) than some of the more organic/dynamic sounding Engls. So NOT the Powerball. ;-)
A Diezel D-Moll is very close to what you're looking for, EL34 or KT77, 100W, 3 channels, but you've gotta love the sound.
I was on the verge of buying one used, brought the cash, tried it out and walked away without an amp. You can't dial out that overly saturated, almost fuzzy thick grind that it has in the low-mids. Engls typically are definitely tighter sounding. And the Savage has enough raw clarity as well, without suffering from the dryness that VHT/Fryette can have. (Sold a Sig:X for chump change too... saw it at some European music store later with a 40% mark-up)
Regarding the BE-100; I recently did a show together with The Iron Maidens and Courtney was playing a BE-100...Great 'bigger than life' lead tone, but waaay too thick, big, chewy and blunt for Maiden-rhythm tones. The other girl (subbing for Nikki) played a DSL100, way more what you expect for Maiden. It would not be my pick for Scandinavian death metal. You need more 'surgical precision' with the right amount of compression and saturation, but clarity and rawness. And clarity/rawness are not the LEADING traits I would bestow on most Bogners or the BE-100. FWIW.
The EVH Stealth 100 is probably a good call too; just make sure you like that plasticy honk in the mids. I tolerate it on my 50W 6L6, but if Engl would release a 2.5/3 channel Savage 50/60 (or Mesa with a Mark V:50) in 60cm head width with EL34's, I'd be all over that in a heartbeat.
Why not just use my old Savage 60 you ask? Lack of switching options I need live. And I've sworn off full sized heads for gigging.
Oh, another European option; Driftwood Nightmare or Mini Nightmare. Tone-wise could be right up your alley. I'm considering the 6L6 Mini Nightmare myself.