A used Creek 5350SE would be around 1K. 85 or 90 watts per side. A Sterophile Mag recommendation. Killer sound.
why not try the audio analogue puccini se? if i remember correctly, i think it doubles the power output of the standard puccini. both units are great sounding integrateds... i had a standard puccini for quite some time, and i really loved the sound.
you might want to check out the anthem integrated 2 (there have been several up for sale at very good prices lately, 90 wpc, hybrid integrated) or the classe cap 150 (100 wpc, solid state).
there is also, of course, the plinius 8100, which is right around $1000. the plinius is a fantastic sounding integrated (also 100 wpc), and would work well in your setup. tube-like sound with all the benefits of solid state. if you can find one for $1000 used, this would be my top recommendation.
best of luck, and happy listening!