What the best amp for the buck with the above info in terms of specs/rating/quality/sound/durability etc. Thank you.
Depends on where you live.

Probably a used Avatar. I'd personally go for a used Mesa.
Spin 'round carousel when your horse isn't screwed in.

My band:
Fractured Instinct
(For fans of Death/Groove/Prog Metal)

Ibanez RGA42E
Ibanez S420
LTD H-301
Ibanez RG520
Peavey Predator USA
Douglas Grendel 725
Line 6 Pod HD500X
i scored a used marshall with a v30 (112) for cheap off craigslist.

a 212 avatar used should be around $275-325, or better if you are lucky.

mesas go for around there as well on gc's used section.