It's going to be hard to find a good 2a3 amp near $1K but here is a good looking used version for $1900 it's $4K new and the "little brother" of the Triode Labs amp in the 6moons review above:
https://www.audiogon.com/listings/tube-triode-lab-2a3-signature-amp-2016-09-06-amplifiers-80816-flor...
Regarding the EL34 tube to me it combines some of the richness of the 300B with a bit more linearity and frequency range but less bloom and perhaps a touch less transparency. As always implementation means as much or more than tube type.
https://www.audiogon.com/listings/tube-triode-lab-2a3-signature-amp-2016-09-06-amplifiers-80816-flor...
Regarding the EL34 tube to me it combines some of the richness of the 300B with a bit more linearity and frequency range but less bloom and perhaps a touch less transparency. As always implementation means as much or more than tube type.