Current nuclear plant designs

Well, beside AP1000 there is AP-600,

ESBWR from GE-Hitachi, 1600 MW BWR,

VVER(MIR)-1200 from Atomenergoproekt, 1200 MW PWR, although I don't know if you can buy it ATM, they put $1.5b price tag,

Kerena from AREVA, 1250 MW BWR,

BWR 90 from ABB, 1200 MW BWR,

BWR 90+ from ABB, 1500 MW BWR, but Sweden isn't promoting them now, this need to be checked,

APR-1400 from KEPCO, 1400 MW PWR,

CANDU-6, 740 MW PWR,

AHWR-LEU, 300 MW PWR, although they claim it is export model, you should check, if it is permitted to run in your country,

BN-800 from Atomstroyexport, 800 MW sodium-cooled fast breeder,

HTR-PM from Chinergy, 210 MW modular high temperature pebble-bed, I don't know what delivery time they can tell you, but this will be probably first IV-generation NPP for export,