Stay with the REGA speakers for that special "je ne sais quoi" REGA synergy.
REGA R3/RS3s are perfect. ~ $700 used (and no stands required) . You can get the RS1s brand new in that budget range but you will also need quality speaker stands for them.
(I've had the R1s in a prior "B" system and I currently have the R3s as rears in my HT)
The R3s/RS3s are quite the Goliath killer. Either can be put close to the wall for speaker placement.
Give them an audition