skazareth,
I'm sorry to burst your bubble but you really should not waste your money on a 4-door 808. It has got to be a two door model to replicate the RX3. This is the same as the Suzuki Swift conversion to Caltus GTI or Mazda BG to Interplay 210. It simply got to be 2-door otherwise nothing special.
Further, if you should ever put in an RE, it must not be a single or twin turbo but simply an NA version like the one in Leong's car. This is the way to go the RX3 was!