any one box amps that come close to monoblocks?

Look for amps described as dual mono, preferably where they describe it as 'true dual mono' where it literally is 2 separate power amps all the way from beginning to end (separate transformers, everything)...in the case of some dual monos (like Gryphon Antileon) there are actually 2 power outlets, one for each channel so you need 2 powercords.

in your price range, second hand...Gryphon Antileon. if you google dual mono, there are a number. hope that is helpful.

i thought so...just was not sure. Thanks for that...good to know.