Emotiva makes some nice gear for the money. Factory direct pricing. However, you'd still need a 5 channel amp, and a preamp/surround processor. That will certainly go over your budget.
I see a NAD T748 surround receiver as a refurb for sale here on Agon from Spearit sound. Has 80 watts per channel. NAD tend to rate their gear conservatively. I had an older 7155 receiver that drove my Mirages remarkably well at 55 watts per channel. Thinking this will offer good sound quality and should have enough power to get you by.
I see a NAD T748 surround receiver as a refurb for sale here on Agon from Spearit sound. Has 80 watts per channel. NAD tend to rate their gear conservatively. I had an older 7155 receiver that drove my Mirages remarkably well at 55 watts per channel. Thinking this will offer good sound quality and should have enough power to get you by.