yo,
I've owned a 6505, played a 5150 II, GH100L and a recorded with a GH100TI. I also own a Soldano Avenger.
The Avenger will do what you want but its kind of out the price range.
I'd avoid Bugera because id rather get a 'built like a tank' second hand 5150 than risk the reliability issues ive read about with Bugera. though im sure not all bugera heads have problems.
GH100L is a cool head, and the TI does have some serious gain. a few guys who play harcore around london have the TI. its real cheap and it does metal well. i enjoyed it, but id try and play one first if i was you, just to check you dig it.
Id go with the second hand 5150/6505 option. my 6505 was a bit noisy for me, I also did the bias mod to mine so i could get more heat into the power tubes. but yeah. i did a few tours with my 6505 and it was super solid and reliable, and apart from the hiss (this is a super hi gain head) it was fine for me.
has anyone hear tried Leboga amps? id be down to try one of those out.